求大神帮忙，谢谢

#include <stdio.h>
int main()
{
    int a,b[10],i=0,c=0;
    printf("请输入原数据\n");
    scanf("%d",&a);
   
    while(a!=0)
        {
            b[i]=a%12;
            a/=12;
            i++;
        }
        printf("十二进制为：");
        i--;
        for(;i>=0;i--)
            printf("%d",b[i]);
        printf("\n");
        return 0;
}