C31232233133313221211113313331333131211113313231333131211331333132322331231   >>    C3123223313331322121111331333133313121111331323133313121133133313232233123   <<    C31232233133313221211113313331333131211113313231333131211331333132322331233   >>      C31232233133313221211113313331333131211113313231333131211331333132322331232   >>