C1111233133313231133133313331333133313231312111133133313233313331312132311   >>    C111123313331323113313331333133313331323131211113313331323331333131213231   <<    C1111233133313231133133313331333133313231312111133133313233313331312132313   >>      C1111233133313231133133313331333133313231312111133133313233313331312132312   >>