2 files changed, 1054 insertions, 0 deletions

diff --git a/input/day7.txt b/input/day7.txt
new file mode 100644
index 0000000..34cee8d
--- /dev/null
+++ b/input/day7.txt
@@ -0,0 +1,1031 @@
+$ cd /
+$ ls
+150555 bch.lht
+276291 ccqfdznj.sqg
+dir csmqbhjv
+dir czdqfr
+dir fpfwfzrt
+192660 qnbzgp
+142026 rpphgdhp.jfr
+dir sqphfslv
+38077 tvpzh
+$ cd csmqbhjv
+$ ls
+52822 bch.lht
+dir dgj
+dir fmmblb
+dir hjwwtw
+dir mtmhst
+dir njsccfms
+dir wmjsvq
+$ cd dgj
+$ ls
+266484 bch.lht
+dir brwncbh
+dir dtdzsqps
+216678 gvmdvcs.fmq
+225948 mdjrhmhf
+dir tvpzh
+301487 tvpzh.wbp
+2555 whsnd.spb
+$ cd brwncbh
+$ ls
+238441 jwmr.plh
+$ cd ..
+$ cd dtdzsqps
+$ ls
+294443 fmmblb
+81441 nsljm.fcz
+$ cd ..
+$ cd tvpzh
+$ ls
+186671 bch.lht
+dir czdqfr
+dir fgmz
+300898 gvmdvcs.fmq
+dir rjnv
+dir szcrlzmr
+dir tvpzh
+dir vbrn
+$ cd czdqfr
+$ ls
+dir czdqfr
+dir hrhqhcjg
+$ cd czdqfr
+$ ls
+8551 zmcqmq.zvf
+$ cd ..
+$ cd hrhqhcjg
+$ ls
+8255 wfvj.lnd
+$ cd ..
+$ cd ..
+$ cd fgmz
+$ ls
+145921 wfvj.lnd
+$ cd ..
+$ cd rjnv
+$ ls
+305697 bch.lht
+dir cdqv
+dir czdqfr
+288685 nsjnqh.fzq
+210447 qlg
+34660 rbnlc.gmc
+143353 vsjg.njm
+$ cd cdqv
+$ ls
+294789 czdqfr.nvt
+$ cd ..
+$ cd czdqfr
+$ ls
+298572 bch.lht
+dir fmmblb
+5599 tvpzh.pnf
+47873 vmm
+$ cd fmmblb
+$ ls
+dir cjtb
+dir llg
+dir rcb
+190831 rwf.rzd
+$ cd cjtb
+$ ls
+306568 fmmblb.hns
+$ cd ..
+$ cd llg
+$ ls
+68274 hbj.glq
+261526 jplstj
+285699 rmq
+$ cd ..
+$ cd rcb
+$ ls
+dir lmgrr
+$ cd lmgrr
+$ ls
+306217 bch.lht
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd szcrlzmr
+$ ls
+dir mdjrhmhf
+195828 pnllrfpr.lhl
+dir rns
+286738 sgzhcwj
+$ cd mdjrhmhf
+$ ls
+dir clmdlmc
+dir fmmblb
+299416 fmmblb.ftr
+dir mnm
+22720 zpgvqpbr.glm
+$ cd clmdlmc
+$ ls
+289014 fmmblb.njt
+246797 gvmdvcs.fmq
+92044 tvpzh.cfj
+$ cd ..
+$ cd fmmblb
+$ ls
+81512 czdqfr.ltc
+173394 ntcdzdc.spn
+$ cd ..
+$ cd mnm
+$ ls
+260096 bch.lht
+dir czdqfr
+dir rwnqgjmm
+$ cd czdqfr
+$ ls
+269467 nfphbtz
+$ cd ..
+$ cd rwnqgjmm
+$ ls
+218872 ldflbsm.rzh
+256978 lwhhc
+dir pgrtzw
+$ cd pgrtzw
+$ ls
+32086 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd rns
+$ ls
+282353 fcwhvqd.qvb
+dir fwjb
+dir prdd
+dir rtrglmt
+$ cd fwjb
+$ ls
+dir jlhqd
+217527 tgvqql
+$ cd jlhqd
+$ ls
+196505 qbrbcrgt.wqj
+$ cd ..
+$ cd ..
+$ cd prdd
+$ ls
+144295 brwncbh
+87560 dsrm
+$ cd ..
+$ cd rtrglmt
+$ ls
+219787 tcsrq.wzt
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+dir swrgwp
+$ cd swrgwp
+$ ls
+dir cqzs
+dir wtcsc
+$ cd cqzs
+$ ls
+284674 rlhjp.dlf
+$ cd ..
+$ cd wtcsc
+$ ls
+50313 wfvj.lnd
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd vbrn
+$ ls
+11650 czdqfr.ccz
+dir fmmblb
+145626 whsnd.spb
+$ cd fmmblb
+$ ls
+204558 rdh.rms
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd fmmblb
+$ ls
+dir bhvpslz
+$ cd bhvpslz
+$ ls
+dir jsmrb
+$ cd jsmrb
+$ ls
+1472 fgctpsl.rgf
+258119 whsnd.spb
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd hjwwtw
+$ ls
+291890 fmmblb.zrt
+$ cd ..
+$ cd mtmhst
+$ ls
+dir dfqm
+dir fmmblb
+178539 jtmflfb
+dir mdjrhmhf
+dir rdzg
+dir tvpzh
+dir wqlf
+$ cd dfqm
+$ ls
+dir czdqfr
+dir fmmblb
+dir gngvhs
+dir ppjdlbp
+dir shs
+dir srdrb
+$ cd czdqfr
+$ ls
+85242 gwqzn.ppr
+$ cd ..
+$ cd fmmblb
+$ ls
+76800 bqbnwdq.zfr
+72865 fmmblb
+119311 hfbtwgb.nmn
+305342 wfvj.lnd
+$ cd ..
+$ cd gngvhs
+$ ls
+dir fmmblb
+dir jfptn
+dir jlqzq
+dir mdjrhmhf
+dir scmjf
+dir tvpzh
+$ cd fmmblb
+$ ls
+174392 whsnd.spb
+$ cd ..
+$ cd jfptn
+$ ls
+dir vjm
+$ cd vjm
+$ ls
+193871 bch.lht
+$ cd ..
+$ cd ..
+$ cd jlqzq
+$ ls
+dir fmmblb
+187410 hcfdppj.hjh
+dir mdjrhmhf
+dir nhb
+107865 qntnnqcp
+dir wlqjpsh
+$ cd fmmblb
+$ ls
+dir ccpvdzg
+240944 fqsjc.cmc
+$ cd ccpvdzg
+$ ls
+304195 whsnd.spb
+$ cd ..
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+242269 whsnd.spb
+$ cd ..
+$ cd nhb
+$ ls
+83616 mtfq
+$ cd ..
+$ cd wlqjpsh
+$ ls
+249472 gdg
+$ cd ..
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+213465 bbsltzd.fvd
+dir tqmwn
+$ cd tqmwn
+$ ls
+54460 bwnztql
+262257 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd scmjf
+$ ls
+dir fhfg
+268890 wqdcbprh
+$ cd fhfg
+$ ls
+234806 whsnd.spb
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+79625 zqbsb.mnq
+$ cd ..
+$ cd ..
+$ cd ppjdlbp
+$ ls
+249976 zdqlmnll.nps
+$ cd ..
+$ cd shs
+$ ls
+107840 bsfcgmrw.dzw
+dir fmmblb
+307016 gvmdvcs.fmq
+185876 jjhdj.vpn
+254920 ltmp
+dir rrg
+312847 whsnd.spb
+$ cd fmmblb
+$ ls
+161417 wppzrz.hjz
+$ cd ..
+$ cd rrg
+$ ls
+304639 bch.lht
+$ cd ..
+$ cd ..
+$ cd srdrb
+$ ls
+dir bgchgtg
+238106 hcfdppj.hjh
+dir lgz
+dir zmlm
+$ cd bgchgtg
+$ ls
+dir hhbmwp
+166735 psbpml.jdb
+dir rtdwhlsq
+171684 zcb.dlr
+$ cd hhbmwp
+$ ls
+105599 cppw.mlb
+dir dvzmpfzn
+72811 fmmblb.bdd
+293591 fnh.fdv
+dir fspwz
+dir gznwz
+259403 tvpzh.bfj
+$ cd dvzmpfzn
+$ ls
+127885 nbb.jgs
+126415 whsnd.spb
+$ cd ..
+$ cd fspwz
+$ ls
+dir fzpfbcvv
+dir jzrqvds
+$ cd fzpfbcvv
+$ ls
+114984 czdqfr.pmn
+157782 gzwrcdp.mtz
+$ cd ..
+$ cd jzrqvds
+$ ls
+47749 hcfdppj.hjh
+$ cd ..
+$ cd ..
+$ cd gznwz
+$ ls
+77780 lnbtzj.bhz
+$ cd ..
+$ cd ..
+$ cd rtdwhlsq
+$ ls
+300900 bbs
+dir cchdchd
+246695 djbmcmn
+195895 fvwm.hrd
+67210 hcfdppj.hjh
+101017 zhnvhfm.wps
+$ cd cchdchd
+$ ls
+52763 gvmdvcs.fmq
+124993 tvpzh.nwc
+dir zzsbq
+$ cd zzsbq
+$ ls
+263814 zvhnm.sbv
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd lgz
+$ ls
+121541 wfvj.lnd
+134550 whsnd.spb
+$ cd ..
+$ cd zmlm
+$ ls
+91948 cjqdnnh.hzr
+250728 czdqfr.zjb
+dir jnbhfnn
+dir rnmghbht
+dir tjhnp
+144737 whsnd.spb
+$ cd jnbhfnn
+$ ls
+49839 whsnd.spb
+$ cd ..
+$ cd rnmghbht
+$ ls
+69330 hcjspd
+dir mfgbbvcc
+dir qdh
+$ cd mfgbbvcc
+$ ls
+dir gmgdfss
+$ cd gmgdfss
+$ ls
+266023 hcfdppj.hjh
+dir mdjrhmhf
+dir ndcmqpc
+291530 vqwf.bfc
+$ cd mdjrhmhf
+$ ls
+dir brwncbh
+$ cd brwncbh
+$ ls
+dir fmmblb
+$ cd fmmblb
+$ ls
+dir ppwp
+$ cd ppwp
+$ ls
+299841 mdjrhmhf.bdg
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ndcmqpc
+$ ls
+71727 mdjrhmhf.njs
+218233 nwvfb.qzt
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd qdh
+$ ls
+294005 jgbcmg.hjg
+$ cd ..
+$ cd ..
+$ cd tjhnp
+$ ls
+dir vhjtqdg
+$ cd vhjtqdg
+$ ls
+28638 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd fmmblb
+$ ls
+111152 cnvzdz.cdb
+252709 gvmdvcs.fmq
+168368 lpfbzh
+dir mdjrhmhf
+dir mzrzzhpt
+72606 qbbllr.shq
+160820 whsnd.spb
+$ cd mdjrhmhf
+$ ls
+32945 fmmblb.jpf
+$ cd ..
+$ cd mzrzzhpt
+$ ls
+dir gdsv
+130898 hcfdppj.hjh
+44339 hvnqt
+dir mdjrhmhf
+297785 mdwng.pbr
+dir wwqmlhgg
+281612 zvftqhm.pzl
+$ cd gdsv
+$ ls
+10562 cprgfn
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+284882 dpjs
+202491 lrtgstpp.grn
+3714 wfvj.lnd
+$ cd ..
+$ cd wwqmlhgg
+$ ls
+84563 fwvhfrh.cfp
+4654 hcfdppj.hjh
+248672 whsnd.spb
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+dir mdjrhmhf
+25175 mdjrhmhf.nrg
+dir mslwjsp
+207567 prrqb.qwj
+282436 tvpzh.hjh
+$ cd mdjrhmhf
+$ ls
+43516 jzrjwdd.vss
+27326 wfvj.lnd
+$ cd ..
+$ cd mslwjsp
+$ ls
+141951 cqvh.zzq
+$ cd ..
+$ cd ..
+$ cd rdzg
+$ ls
+312895 brwncbh.cpb
+$ cd ..
+$ cd tvpzh
+$ ls
+228240 bch.lht
+dir fjtwlj
+dir jnpgqsb
+90201 ldh
+271575 rfhh.vzr
+69760 whsnd.spb
+$ cd fjtwlj
+$ ls
+46126 rhdr.jgg
+$ cd ..
+$ cd jnpgqsb
+$ ls
+dir rllbvnm
+$ cd rllbvnm
+$ ls
+212620 hcfdppj.hjh
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd wqlf
+$ ls
+210864 fmmblb
+dir jswfprpl
+dir nztbsbq
+$ cd jswfprpl
+$ ls
+dir fmmblb
+dir lmwz
+dir qvj
+$ cd fmmblb
+$ ls
+201940 mhjlhc.npl
+$ cd ..
+$ cd lmwz
+$ ls
+dir brwncbh
+dir dhff
+288199 flgch
+187825 gvmdvcs.fmq
+203272 nvfllgvn.cjj
+dir tvpzh
+dir vrv
+53288 zsrz.mrd
+$ cd brwncbh
+$ ls
+174732 whsnd.spb
+$ cd ..
+$ cd dhff
+$ ls
+dir lddw
+dir mfwnzprw
+222134 tvpzh.gfm
+$ cd lddw
+$ ls
+296685 bch.lht
+$ cd ..
+$ cd mfwnzprw
+$ ls
+6260 dvrcqzp.pmd
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+dir gmvswdr
+dir hfzdqdz
+dir hhjwt
+228542 htljf.tfl
+57417 mdjrhmhf
+248369 whsnd.spb
+$ cd gmvswdr
+$ ls
+215582 fnzh.mhs
+$ cd ..
+$ cd hfzdqdz
+$ ls
+82080 dcw.vmt
+142007 fmmblb.fnq
+dir ggqcqcc
+36091 hcfdppj.hjh
+219562 mqb.qsm
+2323 wfvj.lnd
+$ cd ggqcqcc
+$ ls
+4679 whsnd.spb
+$ cd ..
+$ cd ..
+$ cd hhjwt
+$ ls
+dir lbqpgd
+dir tdb
+$ cd lbqpgd
+$ ls
+177175 wfvj.lnd
+$ cd ..
+$ cd tdb
+$ ls
+270893 bch.lht
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd vrv
+$ ls
+dir bqmnhdts
+171679 czdqfr
+$ cd bqmnhdts
+$ ls
+64972 pjzzs.qqd
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd qvj
+$ ls
+dir bfwtb
+dir bpnppqg
+271362 gcs.srv
+dir gvlqddlb
+70000 gzdr.ndb
+103231 pwspfm
+dir swgfvtf
+$ cd bfwtb
+$ ls
+200600 czdqfr.sbv
+dir wmbhgcw
+$ cd wmbhgcw
+$ ls
+310044 zwfrcld.mtb
+$ cd ..
+$ cd ..
+$ cd bpnppqg
+$ ls
+120203 dggplss.whb
+$ cd ..
+$ cd gvlqddlb
+$ ls
+12163 bch.lht
+154059 llpw
+dir pglr
+dir rbfpbcpd
+dir rstg
+209132 tvpzh.djc
+287422 wlhjvsz
+$ cd pglr
+$ ls
+145907 brwncbh.cqp
+$ cd ..
+$ cd rbfpbcpd
+$ ls
+292475 brwncbh
+dir czdqfr
+dir dcnh
+dir fmmblb
+dir qwrsrdr
+$ cd czdqfr
+$ ls
+66107 tvpzh.wfd
+$ cd ..
+$ cd dcnh
+$ ls
+297110 rpzsrws.sft
+$ cd ..
+$ cd fmmblb
+$ ls
+25829 wmmhq
+$ cd ..
+$ cd qwrsrdr
+$ ls
+199762 fmmblb.qpm
+$ cd ..
+$ cd ..
+$ cd rstg
+$ ls
+236706 bch.lht
+$ cd ..
+$ cd ..
+$ cd swgfvtf
+$ ls
+227938 lrbcddd.btw
+282992 rlnwrd
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd nztbsbq
+$ ls
+116544 czdqfr
+dir fhwmhvdn
+68451 gvmdvcs.fmq
+247136 hcfdppj.hjh
+dir mzvq
+dir tvpzh
+dir wtllfshw
+$ cd fhwmhvdn
+$ ls
+122155 cmtlhcdw
+39927 twbfczfb.lcp
+$ cd ..
+$ cd mzvq
+$ ls
+dir lnjtfgh
+$ cd lnjtfgh
+$ ls
+161712 phfn
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+dir jgpr
+dir mdjrhmhf
+dir rnntmvpr
+$ cd jgpr
+$ ls
+85238 gvmdvcs.fmq
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+231007 gzrsgvp
+$ cd ..
+$ cd rnntmvpr
+$ ls
+285020 tvpzh
+$ cd ..
+$ cd ..
+$ cd wtllfshw
+$ ls
+135281 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd njsccfms
+$ ls
+dir zdddqvq
+$ cd zdddqvq
+$ ls
+91520 whmwbpd
+$ cd ..
+$ cd ..
+$ cd wmjsvq
+$ ls
+dir fmmblb
+dir htmb
+dir lmzhpth
+dir mrjq
+142052 wldwl
+$ cd fmmblb
+$ ls
+173331 fmmblb.fbm
+$ cd ..
+$ cd htmb
+$ ls
+dir gtm
+$ cd gtm
+$ ls
+7647 hcfdppj.hjh
+$ cd ..
+$ cd ..
+$ cd lmzhpth
+$ ls
+dir tvpzh
+dir vdqg
+dir zvhmfm
+$ cd tvpzh
+$ ls
+259073 wfvj.lnd
+$ cd ..
+$ cd vdqg
+$ ls
+199919 bch.lht
+169430 fmmblb.ttq
+231127 hcfdppj.hjh
+$ cd ..
+$ cd zvhmfm
+$ ls
+274752 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd mrjq
+$ ls
+dir fqcspsv
+dir fvvmlbf
+252802 gnclv
+82538 gvmdvcs.fmq
+296461 jvbnhrpd
+104809 lbh
+46038 tfq.gtv
+$ cd fqcspsv
+$ ls
+dir fjqnf
+$ cd fjqnf
+$ ls
+dir tvpzh
+$ cd tvpzh
+$ ls
+dir lhwdrcwz
+$ cd lhwdrcwz
+$ ls
+129410 lcd.dzd
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd fvvmlbf
+$ ls
+263142 brwncbh.fgg
+232863 cvwv
+100409 qphswnlb.vpq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd czdqfr
+$ ls
+dir czdqfr
+307029 lntbmr.brq
+dir mdjrhmhf
+dir tvpzh
+$ cd czdqfr
+$ ls
+289585 gvmdvcs.fmq
+$ cd ..
+$ cd mdjrhmhf
+$ ls
+137110 brwncbh.dbt
+$ cd ..
+$ cd tvpzh
+$ ls
+258325 wfvj.lnd
+$ cd ..
+$ cd ..
+$ cd fpfwfzrt
+$ ls
+221993 hcfdppj.hjh
+56206 lphphf.thd
+255850 mdjrhmhf.hqt
+$ cd ..
+$ cd sqphfslv
+$ ls
+104415 mdjrhmhf.gbr
+dir pjtzm
+dir spnr
+61982 stbwbpzf.hwm
+$ cd pjtzm
+$ ls
+dir brwncbh
+178769 jnmgzcqh.mht
+dir tvpzh
+153193 tvpzh.cdc
+dir zstcqndd
+$ cd brwncbh
+$ ls
+117400 brwncbh.mvq
+dir fbzvn
+3239 fmmblb.hzm
+73631 hqtnwbgw
+dir npzf
+172382 pdgg
+$ cd fbzvn
+$ ls
+152876 bch.lht
+293370 czc.jtt
+43408 czdqfr
+dir fqg
+105569 qqmcwjz.bzd
+19734 whsnd.spb
+$ cd fqg
+$ ls
+88780 jffmmm.qff
+22385 lqrhch.vlm
+$ cd ..
+$ cd ..
+$ cd npzf
+$ ls
+190792 pdtlbrqt.ghq
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+dir blgjrjt
+dir dlzjtlbt
+dir jnwm
+dir qprbng
+305178 tbvg
+dir tvpzh
+308117 wrbldl.jhp
+$ cd blgjrjt
+$ ls
+125644 bch.lht
+104319 ctglz.lmd
+131972 hcfdppj.hjh
+312663 tbgqwf
+$ cd ..
+$ cd dlzjtlbt
+$ ls
+98262 bvfldnd.sls
+173244 dlmf.mzh
+75842 rlbpgjh.wtb
+$ cd ..
+$ cd jnwm
+$ ls
+58963 vjftmflp.dcs
+$ cd ..
+$ cd qprbng
+$ ls
+308054 fzbrm.jdt
+310679 gnwn.psf
+257810 tpsgjjdq.mdw
+dir tvpzh
+305633 vpbwhqs.cqb
+$ cd tvpzh
+$ ls
+220904 rlpj.rdc
+$ cd ..
+$ cd ..
+$ cd tvpzh
+$ ls
+dir fmmblb
+$ cd fmmblb
+$ ls
+104020 crhq.pnb
+74914 czdqfr
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd zstcqndd
+$ ls
+dir brwncbh
+dir jwpbtpr
+306359 ljg
+dir wbssjjd
+$ cd brwncbh
+$ ls
+114145 wfvj.lnd
+$ cd ..
+$ cd jwpbtpr
+$ ls
+94567 bch.lht
+dir czdqfr
+dir fsqvbv
+134187 wnpcqmw.tws
+$ cd czdqfr
+$ ls
+dir mdjrhmhf
+$ cd mdjrhmhf
+$ ls
+122398 mdjrhmhf.zts
+dir svhh
+101920 whsnd.spb
+dir zcsnqjj
+$ cd svhh
+$ ls
+120875 tvpzh.jls
+$ cd ..
+$ cd zcsnqjj
+$ ls
+279979 tljnvzbq.sgj
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd fsqvbv
+$ ls
+114278 hwrhzs.jbj
+dir tvpzh
+$ cd tvpzh
+$ ls
+17235 gvmdvcs.fmq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd wbssjjd
+$ ls
+dir mdjrhmhf
+$ cd mdjrhmhf
+$ ls
+11336 fqsp
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd spnr
+$ ls
+298067 sznwzj
\ No newline at end of file
diff --git a/input/day7_ex.txt b/input/day7_ex.txt
new file mode 100644
index 0000000..bcbb513
--- /dev/null
+++ b/input/day7_ex.txt
@@ -0,0 +1,23 @@
+$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k
\ No newline at end of file