各位神犇救救我！！

#include <bits/stdc++.h>
using namespace std;
int book[10][60];
int n;
int main()
{
    cin>>n;
    while(n--)
    {
        char a,b;
        cin>>a>>b;
        if(a=='D')
        {
            if(b=='A')
                book[1][1]=1;
            if(b>='0' && b<='9')
                book[1][b-'0']=1;
            if(b=='T')
                book[1][10]=1;
            if(b=='J')
                book[1][11]=1;
            if(b=='Q')
                book[1][12]=1;
            if(b=='K')
                book[1][13]=1;
        }
        if(a=='C')
        {
            if(b=='A')
                book[2][1]=1;
            if(b>='2' && b<='9')
                book[2][b-'0']=1;
            if(b=='T')
                book[2][10]=1;
            if(b=='J')
                book[2][11]=1;
            if(b=='Q')
                book[2][12]=1;
            if(b=='K')
                book[2][13]=1;
        }
        if(a=='H')
        {
            if(b=='A')
                book[3][1]=1;
            if(b>='0' && b<='9')
                book[3][b-'0']=1;
            if(b=='T')
                book[3][10]=1;
            if(b=='J')
                book[3][11]=1;
            if(b=='Q')
                book[3][12]=1;
            if(b=='K')
                book[2][13]=1;
        }
        if(a=='S')
        {
            if(b=='A')
                book[4][1]=1;
            if(b>='0' && b<='9')
                book[4][b-'0']=1;
            if(b=='T')
                book[2][10]=1;
            if(b=='J')
                book[4][11]=1;
            if(b=='Q')
                book[4][12]=1;
            if(b=='K')
                book[4][13]=1;
        }
    }
    int ans=0;
    for(int i=1;i<=4;i++)
        for(int j=1;j<=13;j++)
            if(book[i][j]==0)
                ans++;
    cout<<ans;
    return 0;
}