C1111133313331323223313331333133313331333111312111133132313222333131   >>    C111113331333132322331333133313331333133311131211113313231322233313   <<    C1111133313331323223313331333133313331333111312111133132313222333133   >>      C1111133313331323223313331333133313331333111312111133132313222333132   >>