C111123313331323113313331331121111331323132322331323132313123223311   >>    C11112331333132311331333133112111133132313232233132313231312322331   <<    C111123313331323113313331331121111331323132322331323132313123223313   >>      C111123313331323113313331331121111331323132322331323132313123223312   >>