C11111211113313112113313331333132313331322113121111331323132212311   >>    C1111121111331311211331333133313231333132211312111133132313221231   <<    C11111211113313112113313331333132313331322113121111331323132212313   >>      C11111211113313112113313331333132313331322113121111331323132212312   >>