C31232233133313221211113313331333132313331333133313331333133313232112312331   >>    C3123223313331322121111331333133313231333133313331333133313331323211231233   <<    C31232233133313221211113313331333132313331333133313331333133313232112312333   >>      C31232233133313221211113313331333132313331333133313331333133313232112312332   >>