C312322331333132212111133133313331333131122233132313331323133311232131   >>    C31232233133313221211113313331333133313112223313231333132313331123213   <<    C312322331333132212111133133313331333131122233132313331323133311232133   >>      C312322331333132212111133133313331333131122233132313331323133311232132   >>