C11111333133313232233133313331333131123313233313231333132231211   >>    C1111133313331323223313331333133313112331323331323133313223121   <<    C11111333133313232233133313331333131123313233313231333132231213   >>      C11111333133313232233133313331333131123313233313231333132231212   >>