C11111333133313232233133313331333131133132313311211113313112231312231   >>    C1111133313331323223313331333133313113313231331121111331311223131223   <<    C11111333133313232233133313331333131133132313311211113313112231312233   >>      C11111333133313232233133313331333131133132313311211113313112231312232   >>