C11111211113313112113313331333133313331333132313331333133313231221323331   >>    C1111121111331311211331333133313331333133313231333133313331323122132333   <<    C11111211113313112113313331333133313331333132313331333133313231221323333   >>      C11111211113313112113313331333133313331333132313331333133313231221323332   >>