第6个点WA,代码如下,求助

#include<bits/stdc++.h>
using namespace std;
int g,y;
char a[5][5],b[5][5];
map<char,int> c;
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	//freopen("herdle.in","r",stdin);
	//freopen("herdle.out","w",stdout);
	for(int i=1;i<=3;i++)
		for(int j=1;j<=3;j++)
			cin>>a[i][j],c[a[i][j]]++;
	for(int i=1;i<=3;i++)
		for(int j=1;j<=3;j++)
		{
			cin>>b[i][j];
			if(b[i][j]==a[i][j])
				g++,c[b[i][j]]--;
			else if(c[b[i][j]]!=0)
				y++,c[b[i][j]]--;
		}
	cout<<g<<endl<<y;
	return 0;
}