C111123313331323113313331333133313331323131211113313331323331323122321   >>    C11112331333132311331333133313331333132313121111331333132333132312232   <<    C111123313331323113313331333133313331323131211113313331323331323122323   >>      C111123313331323113313331333133313331323131211113313331323331323122322   >>