C11111211113313112113313331333133313331333132313331333133313331312213113331   >>    C1111121111331311211331333133313331333133313231333133313331333131221311333   <<    C11111211113313112113313331333133313331333132313331333133313331312213113333   >>      C11111211113313112113313331333133313331333132313331333133313331312213113332   >>