C31232233133313221211113313331333132313331333133313331333133313332332313231   >>    C3123223313331322121111331333133313231333133313331333133313331333233231323   <<    C31232233133313221211113313331333132313331333133313331333133313332332313233   >>      C31232233133313221211113313331333132313331333133313331333133313332332313232   >>