C31232233133313221211113313331333131211113313231333133331323221311   >>    C3123223313331322121111331333133313121111331323133313333132322131   <<    C31232233133313221211113313331333131211113313231333133331323221313   >>      C31232233133313221211113313331333131211113313231333133331323221312   >>