new file mode 100644

@@ -0,0 +1,19 @@

+/*!

+ *     Copyright:  Copyright (c) 2019, HiSEON.me

+ */

+

+#include <stdio.h>

+

+int sum(int a, int b);

+

+int main() {

+  for (int i=0; i < 10; i++) {

+    printf("hello, world\n");

+  }

+

+  return 0;

+}

+

+int sum(int a, int b) {

+  return a+b;  // 덧셈을 계산

+}