C11111211113313112113313331333133313331333132313331333133313331333132323322211   >>    C1111121111331311211331333133313331333133313231333133313331333133313232332221   <<    C11111211113313112113313331333133313331333132313331333133313331333132323322213   >>      C11111211113313112113313331333133313331333132313331333133313331333132323322212   >>