C11111211113313112113313331333132313331322121111133313331322331333132212311   >>    C1111121111331311211331333133313231333132212111113331333132233133313221231   <<    C11111211113313112113313331333132313331322121111133313331322331333132212313   >>      C11111211113313112113313331333132313331322121111133313331322331333132212312   >>