C11111211113313112113313331333133313331333132313331333133313222332231   >>    C1111121111331311211331333133313331333133313231333133313331322233223   <<    C11111211113313112113313331333133313331333132313331333133313222332233   >>      C11111211113313112113313331333133313331333132313331333133313222332232   >>