C312322331333132212111133133313331323133313221211331333132313311232231   >>    C31232233133313221211113313331333132313331322121133133313231331123223   <<    C312322331333132212111133133313331323133313221211331333132313311232233   >>      C312322331333132212111133133313331323133313221211331333132313311232232   >>