C11111333133313232233133313331333133313231333133313331123313121113331333323321   >>    C1111133313331323223313331333133313331323133313331333112331312111333133332332   <<    C11111333133313232233133313331333133313231333133313331123313121113331333323323   >>      C11111333133313232233133313331333133313231333133313331123313121113331333323322   >>