C11111333133313232233133313331333132313331323133313331312111113231321   >>    C1111133313331323223313331333133313231333132313331333131211111323132   <<    C11111333133313232233133313331333132313331323133313331312111113231323   >>      C11111333133313232233133313331333132313331323133313331312111113231322   >>