#include <bits/stdc++.h>
using namespace std;
int main() {
	string r = R"X(

#include <bits/stdc++.h>
using namespace std;
int main() {
	string r = R"Y(Z)Y", s;
	for(int i = 0; i < r.size(); i++) { if(r[i] == 'W' + 3) { s += r; } else { s += r[i] + (r[i] == 'W' + 2 ? -1 : 0); } }
	for(int i = 0; i < s.size(); i++) { char c = getchar(); if(s[i] != c) { printf("%d\n\"%c\"\n\"%c\"\n", i, s[i], c); } }
	return 0;
}

)X", s;
	for(int i = 0; i < r.size(); i++) { if(r[i] == 'W' + 3) { s += r; } else { s += r[i] + (r[i] == 'W' + 2 ? -1 : 0); } }
	for(int i = 0; i < s.size(); i++) { char c = getchar(); if(s[i] != c) { printf("%d\n\"%c\"\n\"%c\"\n", i, s[i], c); } }
	return 0;
}