diff --git a/p2.c b/p2.c
index deb7121..878e86e 100644
--- a/p2.c
+++ b/p2.c
@@ -19,7 +19,7 @@ int main() {
 		a = b;
 		b = c;
 			
-		if (c & 1)
+		if (!(c & 1))
 			r += c;
 	}