C11111211113313112113313331333132313331322132333133313113313223223331   >>    C1111121111331311211331333133313231333132213233313331311331322322333   <<    C11111211113313112113313331333132313331322132333133313113313223223333   >>      C11111211113313112113313331333132313331322132333133313113313223223332   >>