#include<bits/stdc++.h>
using namespace std;char s[]="#include<bits/stdc++.h>$using namespace std;char s[]=@;int main() {string code;int idx = 0;while (s[idx] != 0) {if (s[idx] == 36) {code += 10;} else if (s[idx] == 64) {code += 34;code += s;code += 34;} else {code += s[idx];}idx++;}idx = 0;while (1) {char ch = getc(stdin);if (code[idx] != ch) {cout << idx << endl;cout << (char)34 << code[idx] << (char)34 << endl;cout << (char)34 << ch << (char)34 << endl;return 0;}idx++;}}";int main() {string code;int idx = 0;while (s[idx] != 0) {if (s[idx] == 36) {code += 10;} else if (s[idx] == 64) {code += 34;code += s;code += 34;} else {code += s[idx];}idx++;}idx = 0;while (1) {char ch = getc(stdin);if (code[idx] != ch) {cout << idx << endl;cout << (char)34 << code[idx] << (char)34 << endl;cout << (char)34 << ch << (char)34 << endl;return 0;}idx++;}}