#include <stdio.h>

int main() 
{
    int x,y,i=1;
    long int pow=1,s=0;
    printf("\n Enter the value of x & y1:");
    scanf("%d%d",&x,&y);
    while(i<=y)
    {
        pow=pow*x;
        s=s+pow;
        i++; 
    }
    printf{"\n Sum= %ld",s);
    
    return 0;
}