#include <iostream>
#include "testlib.h"
using namespace std;

int main() {
	registerValidation();
	long long A = inf.readLong((long long)2, (long long)10, "A");
	inf.readEoln();
	string S = "[0-9]{1, 100000}";
	S[3] = A - 1 + '0';
	string B = inf.readToken(S, "B");
	inf.readEoln();;
	inf.readEof();
}