C11111333133313232233133313331333132313331323321313331333133312111112131   >>    C1111133313331323223313331333133313231333132332131333133313331211111213   <<    C11111333133313232233133313331333132313331323321313331333133312111112133   >>      C11111333133313232233133313331333132313331323321313331333133312111112132   >>