#include<bits/stdc++.h>
using namespace std;
 
#define debug(x) cerr << #x << ": " << (x) << endl
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define dwn(i,a,b) for(int i=(a);i>=(b);i--)
#define pb push_back
#define all(x) (x).begin(), (x).end()
 
#define x first
#define y second
using pii = pair<int, int>;
using ll = long long;
 
inline void read(int &x){
    int s=0; x=1;
    char ch=getchar();
    while(ch<'0' || ch>'9') {if(ch=='-')x=-1;ch=getchar();}
    while(ch>='0' && ch<='9') s=(s<<3)+(s<<1)+ch-'0',ch=getchar();
    x*=s;
}

map<string, bool> vis;
vector<string> res;

signed main(){
	string s;
	bool fl=false;
	while(getline(cin, s)){
		// debug(s);
		if(s==""){
			fl=true;
			continue;
		}
		
		if(!fl){
			vis[s]=0;
		}
		else{
			string t;
			int idx;
			int cnt=0;
			dwn(i, s.size()-1, 0){
				if(s[i]=='_') ++cnt;
				if(cnt==2){
					idx=i-1;
					break;
				}
			}
			rep(i, 0, idx) t+=s[i];
			if(!vis.count(t)){
				res.pb("F "+s);
			}
			else{
				vis[t]=true;
			}
		}
	}
	
	for(auto &[x, y]: vis) if(!y) res.pb("I "+x);
	
	sort(all(res));
	for(auto &e: res) cout<<e<<"\n";
	if(!res.size()) puts("No mismatches.");
	
	return 0;
}