#include<cstdio>#include<cstring>#include<iostream>#include<algorithm>#include<ctime>using namespace std;int main(){    for(int t = 1;;t ++)    {        system("data.exe");        system("a.exe");        system("std.exe");        if(!system("fc a.txt std.txt"))        {            printf("%d    :AC\n",t);        }        else        {            printf("%d    :WA\n",t);            break;        }    }    return 0;}