#include <stdio.h>
int main(){
    int num,radix;scanf("%d%d",&radix,&num);
    int arr[32] = {0},i=0;
    while(num){
        arr[i] = num % radix;
        num /= radix;
        i++;
    }
    while(i--){
        putchar(arr[i] + '0');
    }
    putchar('\n');
}