C111123313331323113313331333133313331323132311233133313222331331   >>    C11112331333132311331333133313331333132313231123313331322233133   <<    C111123313331323113313331333133313331323132311233133313222331333   >>      C111123313331323113313331333133313331323132311233133313222331332   >>