蒟蒻求救

#include<cstdio>
int n,m,a,p;
int yue[12]={31,28,31,30,31,30,31,31,30,31,30,31};
int main()
{
    scanf("%d %d",&n,&m);
    for(int i=1;i<=12;i++)
        for(int j=1;j<=yue[i-1];j++)
        {
            a=(j%10)*1000+(j/10)*100+(i%10)*10+i/10;
            if(a<(n/10000)||a>(m/10000))continue;
            p++;
        }
    if(n<=92200229&&m>=92200229)p++;
    printf("%d",p);
}

各位大佬们这个题解的第11个点挂了，请问它错在了那里?