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Time Limit: 1 s Memory Limit: 1024 MB Total points: 100

#5301. 取模毁掉了传说

Statistics

Grammy 有一个整数序列 $a_1, a_2, \dots, a_n$。她认为序列中的元素太大了,所以她决定给序列加上一个等差数列。形式化地,她可以选择两个非负整数 $s, d$,并对每个 $k \in [1, n]$,将 $s + kd$ 加到 $a_k$ 上。

由于我们想要破坏这个传说,请告诉她操作后元素模 $m$ 的和的最小值。注意,你应该最小化取模后的和。

输入格式

第一行包含两个整数 $n, m$ ($1 \le n \le 10^5, 1 \le m \le 10^9$)。

第二行包含 $n$ 个整数 $a_1, a_2, \dots, a_n$ ($0 \le a_i < m$),表示初始序列。

输出格式

输出恰好两行。

第一行包含一个整数,表示模 $m$ 后的最小元素和。

第二行包含两个整数 $s, d$ ($0 \le s, d < m$),表示 Grammy 选择的整数。

如果存在多种解,输出任意一个即可。

样例

样例输入 1

6 24
1 1 4 5 1 4

样例输出 1

1
0 5

样例输入 2

7 29
1 9 1 9 8 1 0

样例输出 2

0
0 0

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