diff --git a/data/bit_0.c b/data/bit_0.c
new file mode 100644
index 0000000..e290873
--- /dev/null
+++ b/data/bit_0.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main() {
+	int x, y;
+	scanf("%x %x", &x, &y);
+
+	//printf("%x\n", x^y);
+	return x^y;
+}