class Comment {
public static void main
(String[] args
) { String s
= "V qba'g haqrefgnaq ubj guvf xvaq bs negvpyrf pna or choyvfurq ba QMbar.\nQMbar vf orpbzvat gur arj Cnfgrova..."; for (char c : s.toCharArray()) {
if ((c >= 'a' && c <= 'm') || (c >= 'A' && c <= 'M')) {
c += 13;
} else if ((c >= 'n' && c <= 'z') || (c >= 'N' && c <= 'Z')) {
c -= 13;
}
}
}
}
Y2xhc3MgQ29tbWVudCB7CgogICAgcHVibGljIHN0YXRpYyB2b2lkIG1haW4oU3RyaW5nW10gYXJncykgewoJCVN0cmluZyBzID0gIlYgcWJhJ2cgaGFxcmVmZ25hcSB1YmogZ3V2ZiB4dmFxIGJzIG5lZ3ZweXJmIHBuYSBvciBjaG95dmZ1cnEgYmEgUU1iYXIuXG5RTWJhciB2ZiBvcnBienZhdCBndXIgYXJqIENuZmdyb3ZhLi4uIjsKCQlmb3IgKGNoYXIgYyA6IHMudG9DaGFyQXJyYXkoKSkgewoJCQlpZiAoKGMgPj0gJ2EnICYmIGMgPD0gJ20nKSB8fCAoYyA+PSAnQScgJiYgYyA8PSAnTScpKSB7CgkJCQljICs9IDEzOwoJCQl9IGVsc2UgaWYgKChjID49ICduJyAmJiBjIDw9ICd6JykgfHwgKGMgPj0gJ04nICYmIGMgPD0gJ1onKSkgewoJCQkJYyAtPSAxMzsKCQkJfQoJCQlTeXN0ZW0ub3V0LnByaW50KGMpOwoJCX0KCX0KfQ==