C11111211113313112113313331333133313331333132313331333133313331313221323311   >>    C1111121111331311211331333133313331333133313231333133313331333131322132331   <<    C11111211113313112113313331333133313331333132313331333133313331313221323313   >>      C11111211113313112113313331333133313331333132313331333133313331313221323312   >>