C FOR Condition

I need to create a simple program which asks for 10 numbers from user and then shows the sum of those numbers or, if the user gives 0 as input, stops and immediately displays the sum of those numbers, and I need to create it only by using a "for" condition. Here is the code:

#include <stdio.h>
int main(){
int num = 0;
for(num = 0; num < 10; num++){
    printf("Input a number: \n");
    scanf("%d", &num);
    if(num == 0){
        printf("Sum: %d\n", num);
    }
}
printf("Sum: %d\n", num);
getchar();
getchar();
}

It stops only when the number is greater than "10".Whats wrong?

I think you want to do this kind of work with your code.

#include <stdio.h>
int main(){
int num = 0;
int sum=0;
for(num = 0; num < 10; num++){
   int i;
   printf("Input a number: \n");
   scanf("%d", &i);
   sum = sum+i;
   if(i == 0){
      printf("Sum: %d\n", sum);
      getchar();
      return 0;
   }
}
printf("Sum: %d\n", sum);
getchar();
return 0;
}