{"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":"MD","content":"天阶夜色凉如水,卧看牵牛织女星。\n\n七夕节到了,LFgg准备送给NPY一个礼物。但是,LFgg是个完美主义强迫症,他不能忍受在购买礼物时别人给他找钱。\nLFgg拥有许多不同面值的纸币各若干张,他希望你能编写一个程序,看看他在1到m的范围内,可以支付多少种价格。"}},{"title":"Input","value":{"format":"MD","content":"输入包含多组样例。\n每组样例的第一行包含两个正整数n(1 ≤ n ≤ 100),m(m ≤ 100000)。\n第二行包含2n个整数,A1,A2,A3....An,C1,C2,C3....Cn(1 ≤ Ai ≤ 100000,1 ≤ Ci ≤ 1000)。\nAi代表每种纸币的面值,Ci代表LFgg拥有这种纸币的张数。\n数据以0 0结尾。\n"}},{"title":"Output","value":{"format":"MD","content":"对于每一组样例输出一个整数,代表1到m的范围内可以支付的价格种类数。"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e3 10\n1 2 4 2 1 1\n2 5\n1 4 2 1\n0 0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003e8\n4\u003c/pre\u003e"}}]}