cbj

#include <stdio.h>
#pragma warning(disable:4996)
int main(){
    int x[100000] = { 0 };
    int a, k;
    int i = 0;
    scanf("%d%d", &a, &k);
    int b = a;
    if(a == 0){
        puts("0");
        return 1;
    }
    while(b != 0){
        int m;
        m = b % k;
        b = b / k;
        x[i] = m;
        i++;
        //printf("%d", b);
    }
    for(int j = i - 1;j >= 0;j--){
        if(x[j] < 10)
            printf("%d", x[j]);
        else{
            printf("%c", x[j] - 10 + 'A');
        }
    }
    return 0;
}