importPackage(java.io);
importPackage(java.lang);
var reader = new BufferedReader( new InputStreamReader(System['in']) );
const a = {}
for (let i=0; i<1000; i++) {
a[i] = i
}
while(true) {
var line = reader.readLine();
if(line == null || line == "42") {
break;
} else {
System.out.println(line);
}
}
aW1wb3J0UGFja2FnZShqYXZhLmlvKTsKaW1wb3J0UGFja2FnZShqYXZhLmxhbmcpOwogCnZhciByZWFkZXIgPSBuZXcgQnVmZmVyZWRSZWFkZXIoIG5ldyBJbnB1dFN0cmVhbVJlYWRlcihTeXN0ZW1bJ2luJ10pICk7CiAKY29uc3QgYSA9IHt9CiAKZm9yIChsZXQgaT0wOyBpPDEwMDA7IGkrKykgewogCWFbaV0gPSBpCiB9CiAKIAp3aGlsZSh0cnVlKSB7Cgl2YXIgbGluZSA9IHJlYWRlci5yZWFkTGluZSgpOwoJaWYobGluZSA9PSBudWxsIHx8IGxpbmUgPT0gIjQyIikgewoJCWJyZWFrOwoJfSBlbHNlIHsKCQlTeXN0ZW0ub3V0LnByaW50bG4obGluZSk7Cgl9Cn0=