C1111233133313231133133313331333133313231331121133132322121111211   >>    C111123313331323113313331333133313331323133112113313232212111121   <<    C1111233133313231133133313331333133313231331121133132322121111213   >>      C1111233133313231133133313331333133313231331121133132322121111212   >>