C31232233133313221211113313331333132313331333133313121111331323133313223221   >>    C3123223313331322121111331333133313231333133313331312111133132313331322322   <<    C31232233133313221211113313331333132313331333133313121111331323133313223223   >>      C31232233133313221211113313331333132313331333133313121111331323133313223222   >>