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#include <bits/stdc++.h>
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using namespace std;
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#define maxV 1000
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/**
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* 2. 完全背包
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1)题目:
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有n件物品和一个容量为v的背包,每种物品都有无限件可用。
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第i种物品的费用是c[i],价值是w[i]。
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求解将哪些物品装入背包可使这些物品的费用总和不超过背包容量,且价值总和最大。
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2)输入:
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测试用例数
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物品数 背包容量
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n个物品的ci和vi
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*/
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int main(void) {
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int cases, n, v, ci, wi;
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int f[maxV];
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freopen("../2.txt", "r", stdin);
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cin >> cases;
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while (cases--) {
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memset(f, 0, sizeof(f));
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cin >> n >> v;
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for (int i = 0; i < n; i++) {
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cin >> ci >> wi;
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for (int j = 0; j <= v; j++) {
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if (j >= ci)
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f[j] = max(f[j], f[j - ci] + wi);
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}
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}
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cout << f[v] << endl;
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}
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}
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