char c1, c2, c3, c4, c5;
    cin >> c1 >> c2 >> c3 >> c4 >> c5;  // 输入5个字符

    // 每个字符加4
    c1 = c1 + 4;
    c2 = c2 + 4;
    c3 = c3 + 4;
    c4 = c4 + 4;
    c5 = c5 + 4;

    // 输出结果
    cout << c1 << c2 << c3 << c4 << c5 << endl;