C111123313331323113313331333133313331323132311233133313222112323131   >>    C11112331333132311331333133313331333132313231123313331322211232313   <<    C111123313331323113313331333133313331323132311233133313222112323133   >>      C111123313331323113313331333133313331323132311233133313222112323132   >>