Power of given number

#include<stdio.h>
int main(){
  int pow,num,i=1;
  long int sum=1;
  printf("Enter a number: ");
scanf("%d",&num);
printf("\nEnter power: ");
scanf("%d",&pow);
  while(i<=pow){
sum=sum*num;
            i++;
  }
  printf("\n%d to the power %d is: %ld",num,pow,sum);
return 0;
}

Output:
Enter a number:2
Enter power:3
2 to the power 3 is:8