C312322331333132212111133133313331323133313221211111122112313223231   >>    C31232233133313221211113313331333132313331322121111112211231322323   <<    C312322331333132212111133133313331323133313221211111122112313223233   >>      C312322331333132212111133133313331323133313221211111122112313223232   >>