C1111133313331323223313331333133313331323223331211113313231232333131   >>    C111113331333132322331333133313331333132322333121111331323123233313   <<    C1111133313331323223313331333133313331323223331211113313231232333133   >>      C1111133313331323223313331333133313331323223331211113313231232333132   >>