C11111211113313112113313331333133313331333131211113313331333132322212222311   >>    C1111121111331311211331333133313331333133313121111331333133313232221222231   <<    C11111211113313112113313331333133313331333131211113313331333132322212222313   >>      C11111211113313112113313331333133313331333131211113313331333132322212222312   >>