C111123313331323113313331333133313331323132311233133313132313232213221   >>    C11112331333132311331333133313331333132313231123313331313231323221322   <<    C111123313331323113313331333133313331323132311233133313132313232213223   >>      C111123313331323113313331333133313331323132311233133313132313232213222   >>