能过样例，但是wa，就一个测试点，求大佬

#include <bits/stdc++.h>
using namespace std;
int main()
{
    string s;
    int xiao=0,da=0,shu=0,fu=0,p=0,k=0;
    cin>>s;
    for(int i=0;i<100;i++){
        if(s[i]>='a'&&s[i]<='z')
            xiao++;
        else if(s[i]>='A'&&s[i]<='z')
            da++;
        else if(s[i]>='0'&&s[i]<='9')
            shu++;
        else if(s[i]=='!'||s[i]=='@'||s[i]=='#'||s[i]=='$')
            fu++;
        else if(s[i]==','){
            if(xiao+da+shu+fu>=6&&xiao+da+shu+fu<=12&&k!=1){
                if((xiao>0&&da>0)||(xiao>0&&fu>0)||(da>0||fu>0)){
                    for(p=i-xiao-da-fu-shu;p<i;p++){
                        cout<<s[p];
                    }
                    cout<<endl;
                    xiao=0,shu=0,da=0,fu=0,k=0;
                }
                else xiao=0,shu=0,da=0,fu=0;
            }
            else xiao=0,shu=0,da=0,fu=0;
        }
        else k=1;       
    } 
    return 0;
}

求调