uva 416

重複不用考慮，如下不用考慮

1 0 9 8

//====================================================================||
//                                                                    ||
//                                                                    ||
//                         Author : GCA                               ||
//                  6AE7EE02212D47DAD26C32C0FE829006                  ||
//====================================================================||
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <climits>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cctype>
#include <utility>
using namespace std;
#ifdef ONLINE_JUDGE
#define ll "%lld"
#else
#define ll "%I64d"
#endif
typedef unsigned int uint;
typedef long long int Int;
#define Set(a,s) memset(a,s,sizeof(a))
#define Write(w) freopen(w,"w",stdout)
#define Read(r) freopen(r,"r",stdin)
#define Pln() printf("\n")
#define I_de(x,n)for(int i=0;i<n;i++)printf("%d ",x[i]);Pln()
#define De(x)printf(#x"%d\n",x)
#define For(i,x)for(int i=0;i<x;i++)
#define CON(x,y) x##y
#define Pmz(dp,nx,ny)for(int hty=0;hty<ny;hty++){for(int htx=0;htx<nx;htx++){\
    printf("%2d ",dp[htx][hty]);}Pln();}
#define M 55
#define PII pair<int,int>
#define PB push_back
#define oo INT_MAX
#define Set_oo 0x3f
#define Is_debug true
#define debug(...) if(Is_debug)printf("DEBUG: "),printf(__VA_ARGS__)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define eps 1e-6
bool xdy(double x,double y){return x>y+eps;}
bool xddy(double x,double y){return x>y-eps;}
bool xcy(double x,double y){return x<y-eps;}
bool xcdy(double x,double y){return x<y+eps;}
int min3(int x,int y,int z){
    int tmp=min(x,y);
    return min(tmp,z);
}
int max3(int x,int y,int z){
    int tmp=max(x,y);
    return max(tmp,z);
}

int bd[10][7]={
    {1,1,1,1,1,1,0},
    {0,1,1,0,0,0,0},
    {1,1,0,1,1,0,1},
    {1,1,1,1,0,0,1},
    {0,1,1,0,0,1,1},
    {1,0,1,1,0,1,1},
    {1,0,1,1,1,1,1},
    {1,1,1,0,0,0,0},
    {1,1,1,1,1,1,1},
    {1,1,1,1,0,1,1}
};
int dd[10];
int t[20];
int n;
void pre(){
    for(int i=0;i<10;i++){
        int x=0;
        for(int j=0;j<7;j++){
            if(bd[i][j])x|=(1<<j);
        }
        dd[i]=x;
//        debug("n %d\n",dd[i]);
    }
}
bool check(int x){
    bool bad[7];
    Set(bad,0);
    for(int i=x,j=0;j<n;i--,j++){
        if(~(~t[j]|dd[i])!=0)return false;
        for(int k=0;k<7;k++){
            if(bad[k]&&((t[j]>>k)&1))return false;

            if(!((t[j]>>k)&1)&&(dd[i]>>k)&1){
                bad[k]=1;
            }
        }
    }
    return true;
}
int main(){
    pre();
    //freopen("input.txt","r",stdin);
    ios_base::sync_with_stdio(0);
    while(~scanf("%d",&n)&&n){
        Set(t,0);
        for(int i=0;i<n;i++){
            char str[10];
            scanf("%s",str);
            for(int j=0;j<7;j++){
                if(str[j]=='Y')t[i]|=(1<<j);
            }
        }
        bool suc=false;;
        for(int i=9;i>=n-1;i--){
            if(check(i)){
                suc=true;
                break;
            }
        }
        printf("%s\n",suc?"MATCH":"MISMATCH");
    }











}