#include <stdio.h>
#include <stdlib.h>

int digui(int n)
{
    if (n<=3)
    {
        return n;

    }
    else
    {
        return digui(n-1)+digui(n-3);

    }
}
int main()
{
    int m,n,sum=0,a,mod=0,ret=0;
    printf("Please input two intgers:n,m;and n must be littter than 10000\n");
    printf("m must be bigger than 2 and litter than 10000\n");
   scanf("%d%*c%d",&n,&m);

        if (n<=10000&&m>2&&m<=10000)
          {
            sum = digui(n);
            mod =sum % m;
            printf("%d，%d\n",sum,mod);
        }

        else
        {
            printf("wrong");
        }

    return 0;
}为啥不能运行呢？