C11111333133313232233133313331333131123313233313231333131331231   >>    C1111133313331323223313331333133313112331323331323133313133123   <<    C11111333133313232233133313331333131123313233313231333131331233   >>      C11111333133313232233133313331333131123313233313231333131331232   >>