C312322331333132212111133133313331323133313221211113313331122112223231   >>    C31232233133313221211113313331333132313331322121111331333112211222323   <<    C312322331333132212111133133313331323133313221211113313331122112223233   >>      C312322331333132212111133133313331323133313221211113313331122112223232   >>