C1111233133313231133133313331333133313231331121133132322331323131233211   >>    C111123313331323113313331333133313331323133112113313232233132313123321   <<    C1111233133313231133133313331333133313231331121133132322331323131233213   >>      C1111233133313231133133313331333133313231331121133132322331323131233212   >>