C1111233133313231133133313331323133313113313121111133313231322231221   >>    C111123313331323113313331333132313331311331312111113331323132223122   <<    C1111233133313231133133313331323133313113313121111133313231322231223   >>      C1111233133313231133133313331323133313113313121111133313231322231222   >>