diff --git a/debug_test_codes/sum.c b/debug_test_codes/sum.c
new file mode 100644
index 0000000..0e12a1f
--- /dev/null
+++ b/debug_test_codes/sum.c
@@ -0,0 +1,15 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+
+int main(int argc, char const *argv[]){
+    int sum = 0;
+    int beg = atoi(argv[1]);
+    int end = atoi(argv[2]);
+
+    for (int i = beg; i <= end; i++){
+        sum += i;
+    }
+	printf("%d\n", sum);
+	return 0;
+}
\ No newline at end of file