public class A {
    private String s1 = """
            \1""";
    private String s2 = """
            \\1""";
    private String s3 = """
            \\\1""";
    private String s4 = """
            \\\\1""";
    private String s5 = """
            \\\\\1""";
    private String s6 = """
            \1\1""";
}