C111123313331323113313331333133313331323323113313331333112113222311   >>    C11112331333132311331333133313331333132332311331333133311211322231   <<    C111123313331323113313331333133313331323323113313331333112113222313   >>      C111123313331323113313331333133313331323323113313331333112113222312   >>