C11111333133313232233133313331333133313231333133313113313332232111133131121311   >>    C1111133313331323223313331333133313331323133313331311331333223211113313112131   <<    C11111333133313232233133313331333133313231333133313113313332232111133131121313   >>      C11111333133313232233133313331333133313231333133313113313332232111133131121312   >>