C1111233133313231133133313331333133313231232313331333133313311232321131   >>    C111123313331323113313331333133313331323123231333133313331331123232113   <<    C1111233133313231133133313331333133313231232313331333133313311232321133   >>      C1111233133313231133133313331333133313231232313331333133313311232321132   >>