diff --git a/src/subtraction/subtraction.c b/src/subtraction/subtraction.c
index 8b13789..31d373d 100644
--- a/src/subtraction/subtraction.c
+++ b/src/subtraction/subtraction.c
@@ -1 +1,3 @@
-
+int subtract(int a, int b) {
+    return a - b;
+}