C31232233133313221211113313331333132313232233133313331211111333131211211331   >>    C3123223313331322121111331333133313231323223313331333121111133313121121133   <<    C31232233133313221211113313331333132313232233133313331211111333131211211333   >>      C31232233133313221211113313331333132313232233133313331211111333131211211332   >>