如题

#include <iostream>
#include <string.h>
#include <algorithm>
#include <math.h>

using namespace std;

string a, b, c;
char code[30];

int main() {
	getline(cin, a);
	getline(cin, b);
	getline(cin, c);

	int lenb = b.size();
	int lenc = c.size();

	for (int i = 1; i <= 26; ++i) code[i] = ' ';
	for (int i = 0; i < lenb; ++i) {
		if (code[a[i] - 'A' + 1] == ' ') code[a[i] - 'A' + 1] = b[i];
		if (code[a[i] - 'A' + 1] != b[i]) {
			cout << "Failed";
			return 0;
		}
	}
	for (int i = 1; i <= 26; ++i) {
		if (code[i] == ' ') {
			cout << "Failed";
			return 0;
		}
	}
	for (int i = 0; i < lenc; ++i) {
		cout << code[c[i] - 'A' + 1];
	}
	return 0;
}