C312322331333132212111133133313331323133313221211331333132313311232322123221   >>    C31232233133313221211113313331333132313331322121133133313231331123232212322   <<    C312322331333132212111133133313331323133313221211331333132313311232322123223   >>      C312322331333132212111133133313331323133313221211331333132313311232322123222   >>