#include "testlib.h"
#include<bits/stdc++.h> 
using namespace std;
int main(int argc,char* argv[])
{
    registerTestlibCmd(argc,argv);
    int S=ans.readInt();
    if(ouf.readInt()!=S)
    	quitf(_wa,"The number of critical network lines in your answer is wrong.");
    typedef pair<int,int> P;
    map<P,bool> exist,vis;
    for(int i=1;i<=S;++i)
    {
    	int x=ans.readInt(),y=ans.readInt();
    	if(x>y)
    		swap(x,y);
    	exist[P(x,y)]=true;
	}
	for(int i=1;i<=S;++i)
	{
		int x=ouf.readInt(),y=ouf.readInt();
		if(x>y)
			swap(x,y);
		if(!exist[P(x,y)])
			quitf(_wa,"Your answer includes non-critical network lines.");
		if(vis[P(x,y)])
			quitf(_wa,"Your answer includes the same critical network lines.");
		vis[P(x,y)]=true;
	}
	quitf(_ok,"Your answer is correct.");
    return 0;
}