Help me in solving RCPITCP05 problem

My issue

What is error

My code

#include <stdio.h>

int main() {

  // Replace the underscores
  printf(21+40);

}

Learning course: Learn C Programming
Problem Link: https://www.codechef.com/learn/course/rcpit-programming-c/RCPITLPC01/problems/RCPITCP05

Just use format specifiers in C language we cannot directly print the sum we need to keep some format specifiers like %d , %c , %f
So here we have an integer output so we need to keep %d
So the revised statement will be printf(ā€œ%dā€,21+40);