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{"input": "b,2,6/1,c,7/d,f,6/b,2,3/2,f,7/1,c,f/1,f,6/d,f,h/b,f,g/3,g,h/d,e,6/1,c,d/3,f,g/4,f,g/d,f,g/c,d,e/b,d,5/2,f,6/2,d,e/1,4,f/b,d,g/c,e,g/d,f,7/b,2,g/c,3,4/b,d,6/1,5,6/c,g,h/c,d,6/2,e,g/4,g,h/1,d,5/d,4,7/d,5,h/d,5,7/d,e,7/3,4,7/1,c,h/b,4,6/5,6,h/2,4,g/1,g,h/c,e,7/1,2,d/1,2,5", "output": "1,2,d,4,5,g,7"}
{"input": "2,5,h/b,4,7/1,2,5/3,e,5/1,c,7/4,f,7/b,2,e/1,c,4/b,3,4/c,d,7/4,6,7/3,e,g/c,5,7/b,3,e/b,d,7/b,g,h/3,5,6/b,6,h/1,d,4/1,5,g/2,4,g/2,3,5/e,5,7/b,5,g/5,g,7/5,g,h/1,4,g/1,4,f/1,2,e/1,g,7/2,d,g/b,6,7/1,4,h/1,3,e/2,6,h/b,f,h/c,d,4/b,3,7/d,4,g/c,g,7/b,5,7/b,f,6/c,e,f/c,e,g/2,e,5", "output": "b,2,3,4,f,g,7"}
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