样例运行是对的，但是WA不知道为啥啊

#include<bits/stdc++.h>
using namespace std;
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	char c;
	string s="";
	while(cin>>c)
	{
		if(c!=',')
		{
			s+=c;
			continue;
		}
		if(s.size()>=6&&s.size()<=12)
		{
			int upper=0,lower=0,digit=0,_=0;
			for(int i=0;i<s.size();i++)
			{
				upper=max(upper,isupper(s[i]));
				lower=max(lower,islower(s[i]));
				digit=max(digit,isdigit(s[i]));
				if(s[i]=='!'||s[i]=='@'||s[i]=='#'||s[i]=='$')
				{
					_=1;
				}
				if(upper+lower+digit>=2&&_)
				{
					cout<<s<<"\n";
					s="";
					continue;
				}
			}
		}
		s="";
	}
	return 0;
}

0元重金奖励