C11111211113313112113313331333133312111113331333133313331121211331322132321   >>    C1111121111331311211331333133313331211111333133313331333112121133132213232   <<    C11111211113313112113313331333133312111113331333133313331121211331322132323   >>      C11111211113313112113313331333133312111113331333133313331121211331322132322   >>