C1111133313331323223313331333133313113313231331121211111133132323322311   >>    C111113331333132322331333133313331311331323133112121111113313232332231   <<    C1111133313331323223313331333133313113313231331121211111133132323322313   >>      C1111133313331323223313331333133313113313231331121211111133132323322312   >>