E.cpp

#include <bits/stdc++.h>

#define FOR(i,a,b) for(int i=(a),_b=(b); i<=_b; i++)
#define FORD(i,a,b) for(int i=(a),_b=(b); i>=_b; i--)
#define REP(i,a) for(int i=0,_a=(a); i<_a; i++)
#define EACH(it,a) for(__typeof(a.begin()) it = a.begin(); it != a.end(); ++it)

#define DEBUG(x) { cout << #x << " = "; cout << (x) << endl; }
#define PR(a,n) { cout << #a << " = "; FOR(_,1,n) cout << a[_] << ' '; cout << endl; }
#define PR0(a,n) { cout << #a << " = "; REP(_,n) cout << a[_] << ' '; cout << endl; }

#define sqr(x) ((x) * (x))
using namespace std;

int main() {
    ios :: sync_with_stdio(false);
    string ans, stu;
    while (cin >> ans >> stu) {
        int cnt = 0;
        REP(i,ans.length())
            if (ans[i] >= 'a' && ans[i] <= 'z')
                if ((ans[i] ^ ' ') != stu[i]) {
                    ++cnt;
                }

        if (cnt >= 3) cout << "Remove"; else cout << "Kafo";
        cout << endl;
    }
    return 0;
}