C11111333133313232233133313331333131123313233313231333132331133133333111   >>    C1111133313331323223313331333133313112331323331323133313233113313333311   <<    C11111333133313232233133313331333131123313233313231333132331133133333113   >>      C11111333133313232233133313331333131123313233313231333132331133133333112   >>