C11111333133313232233133313331333131123313233313231333132322331311331   >>    C1111133313331323223313331333133313112331323331323133313232233131133   <<    C11111333133313232233133313331333131123313233313231333132322331311333   >>      C11111333133313232233133313331333131123313233313231333132322331311332   >>