C111113331333133312112113313331333133313231333133313331311331333132333111   >>    C11111333133313331211211331333133313331323133313331333131133133313233311   <<    C111113331333133312112113313331333133313231333133313331311331333132333113   >>      C111113331333133312112113313331333133313231333133313331311331333132333112   >>