scanf函数的应用

Question

#include <stdio.h>

int main()

{

    int vx,vy;

    vx=57;

    vy=21;

    puts("请输入两个整数。");

    printf("整数vx:");scanf("%d,"&vx);

    printf("整数vy:");scanf("%d,"&vy);

    printf("vx+vy=%d",vx+vy);

    return 0;

}

请问一下，这里有哪里有错误吗？谢谢啦