C11111211113313112113313331333132313331322132333133313113313331323322112111   >>    C1111121111331311211331333133313231333132213233313331311331333132332211211   <<    C11111211113313112113313331333132313331322132333133313113313331323322112113   >>      C11111211113313112113313331333132313331322132333133313113313331323322112112   >>