C111123313331323113313331323133313231331123231311331323132323221   >>    C11112331333132311331333132313331323133112323131133132313232322   <<    C111123313331323113313331323133313231331123231311331323132323223   >>      C111123313331323113313331323133313231331123231311331323132323222   >>