{"trustable":false,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cp\u003e有一壶 $S$ 毫升的酒,酒壶容量也是 $S$ 毫升(没有刻度),现在有两个 $N$ 毫升和 $M$ 毫升的酒杯(也都没有刻度),$S\u003dN+M,101>S>0,N>0,M>0$,这三只容器均可以相互倒酒,请问用这三只容器能否平分这 $S$ 毫升的酒?\u003c/p\u003e\n"}},{"title":"输入格式","value":{"format":"HTML","content":"\u003cp\u003e多行输入,每行给出三个整数 $S,M,N$,$S$ 是酒的体积(也是酒壶的容量),$M,N$分别是两个酒杯的容量。当输入\"0 0 0\"时结束输入。\u003c/p\u003e"}},{"title":"输出格式","value":{"format":"HTML","content":"\u003cp\u003e如果能平分的话,在一行输出最小的倒酒次数,否则在一行输出\"NO\"。\u003c/p\u003e\n\u003cb\u003e每行输出末尾不能有多余空格。\u003c/b\u003e\n\n"}},{"title":"输入样例","value":{"format":"HTML","content":"\u003cpre\u003e7 4 3\n4 1 3\n0 0 0\u003c/pre\u003e"}},{"title":"输出样例","value":{"format":"HTML","content":"\u003cpre\u003eNO\n3\u003c/pre\u003e"}}]}