#include<stdio.h>
#define L    10
void conversion(int N,int r)
{
int s[L],top;
int x;
top=-1;
while(N)
{
	s[++top]=N%r;
	N/=r;
}
while(top!=-1)
{
	x=s[top--];
	printf("%d",x);
}

}
main()
{
	int N,r;
	printf("請輸入你想轉換的數");
	scanf("%d",&N);
	printf("請輸入你想轉換的進制");
	scanf("%d",&r);
	conversion(N,r);
}