C111123313331323113313331333133313331323132333133313331322131323221   >>    C11112331333132311331333133313331333132313233313331333132213132322   <<    C111123313331323113313331333133313331323132333133313331322131323223   >>      C111123313331323113313331333133313331323132333133313331322131323222   >>