C1111133313331323223313331333133313231333132313331333133313121332211   >>    C111113331333132322331333133313331323133313231333133313331312133221   <<    C1111133313331323223313331333133313231333132313331333133313121332213   >>      C1111133313331323223313331333133313231333132313331333133313121332212   >>