C11111211113313112113313331333133313331333132313331333133313331323332321311   >>    C1111121111331311211331333133313331333133313231333133313331333132333232131   <<    C11111211113313112113313331333133313331333132313331333133313331323332321313   >>      C11111211113313112113313331333133313331333132313331333133313331323332321312   >>