C31232233133313221211113313331333132313331322121111121333131111331313231   >>    C3123223313331322121111331333133313231333132212111112133313111133131323   <<    C31232233133313221211113313331333132313331322121111121333131111331313233   >>      C31232233133313221211113313331333132313331322121111121333131111331313232   >>