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Time Limit: 2.0 s Memory Limit: 512 MB Total points: 100

#18345. 无力的法师

Statistics

一位法师掌握了 $n$ 个法术,其中第 $i$ 个法术需要 $q_i$ 点蓝色法力值、$w_i$ 点紫色法力值和 $e_i$ 点橙色法力值($q_i + w_i + e_i > 0$)。假设法师拥有 $Q$ 点蓝色法力值、$W$ 点紫色法力值和 $E$ 点橙色法力值,并记法力值总量 $Q + W + E$ 为 $R$。已知法师无法施放任何法术,问 $R$ 的最大值可能是多少?

输入格式

第一行包含一个整数 $n$($1 \le n \le 200000$)—— 法术的数量。

接下来的 $n$ 行,每行包含三个整数 $q_i, w_i, e_i$($0 \le q_i, w_i, e_i \le 10^9$,$q_i + w_i + e_i > 0$)—— 第 $i$ 个法术的法力消耗。

输出格式

输出满足法师无法施放任何法术的最大法力值总量 $R$。

如果该数值可以无限大(即对于任意的法力值总量 $R$,都存在一种法力值分配方案使得法师无法施放任何法术),则输出 Infinity

样例

输入 1

4
0 0 100
0 100 0
100 0 0
61 71 81

输出 1

278

输入 2

6
0 0 100
0 100 0
100 0 0
0 11 61
11 61 0
61 0 11

输出 2

180

输入 3

3
3 1 1
1 3 1
1 1 3

输出 3

Infinity

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