C111123313331323113313331333133313331323123231333132313331322231221   >>    C11112331333132311331333133313331333132312323133313231333132223122   <<    C111123313331323113313331333133313331323123231333132313331322231223   >>      C111123313331323113313331333133313331323123231333132313331322231222   >>