C111123313331323113313331333133313331323132212132313231323132322131   >>    C11112331333132311331333133313331333132313221213231323132313232213   <<    C111123313331323113313331333133313331323132212132313231323132322133   >>      C111123313331323113313331333133313331323132212132313231323132322132   >>