C111123313331323113313331333133313331323132311233133313221123312231   >>    C11112331333132311331333133313331333132313231123313331322112331223   <<    C111123313331323113313331333133313331323132311233133313221123312233   >>      C111123313331323113313331333133313331323132311233133313221123312232   >>