C312322331333132212111133133313331323133313233313331333131111233133313211   >>    C31232233133313221211113313331333132313331323331333133313111123313331321   <<    C312322331333132212111133133313331323133313233313331333131111233133313213   >>      C312322331333132212111133133313331323133313233313331333131111233133313212   >>