C11111333133313232233133313331333133313233313231333131311211321   >>    C1111133313331323223313331333133313331323331323133313131121132   <<    C11111333133313232233133313331333133313233313231333131311211323   >>      C11111333133313232233133313331333133313233313231333131311211322   >>