C1111233133313231133133313331333133313231331121133132322331121133133322221   >>    C111123313331323113313331333133313331323133112113313232233112113313332222   <<    C1111233133313231133133313331333133313231331121133132322331121133133322223   >>      C1111233133313231133133313331333133313231331121133132322331121133133322222   >>