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diff --git a/exercises/09_if.zig b/exercises/09_if.zig
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+//
+// Now we get into the fun stuff, starting with the 'if' statement!
+//
+//     if (true) {
+//         ...
+//     } else {
+//         ...
+//     }
+//
+// Zig has the "usual" comparison operators such as:
+//
+//     a == b   means "a equals b"
+//     a < b    means "a is less than b"
+//     a !=b    means "a does not equal b"
+//
+// The important thing about Zig's "if" is that it *only* accepts
+// boolean values. It won't coerce numbers or other types of data
+// to true and false.
+//
+const std = @import("std");
+
+pub fn main() void {
+    const foo = 1;
+
+    // Please fix this condition:
+    if (foo) {
+        // We want out program to print this message!
+        std.debug.print("Foo is 1!\n", .{});
+    } else {
+        std.debug.print("Foo is not 1!\n", .{});
+    }
+}