CF1155C.Alarm Clocks Everywhere

普及/提高-

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题目描述

Ivan is going to sleep now and wants to set his alarm clock. There will be many necessary events tomorrow, the ii -th of them will start during the xix_i -th minute. Ivan doesn't want to skip any of the events, so he has to set his alarm clock in such a way that it rings during minutes x1,x2,,xnx_1, x_2, \dots, x_n , so he will be awake during each of these minutes (note that it does not matter if his alarm clock will ring during any other minute).

Ivan can choose two properties for the alarm clock — the first minute it will ring (let's denote it as yy ) and the interval between two consecutive signals (let's denote it by pp ). After the clock is set, it will ring during minutes y,y+p,y+2p,y+3py, y + p, y + 2p, y + 3p and so on.

Ivan can choose any minute as the first one, but he cannot choose any arbitrary value of pp . He has to pick it among the given values p1,p2,,pmp_1, p_2, \dots, p_m (his phone does not support any other options for this setting).

So Ivan has to choose the first minute yy when the alarm clock should start ringing and the interval between two consecutive signals pjp_j in such a way that it will ring during all given minutes x1,x2,,xnx_1, x_2, \dots, x_n (and it does not matter if his alarm clock will ring in any other minutes).

Your task is to tell the first minute yy and the index jj such that if Ivan sets his alarm clock with properties yy and pjp_j it will ring during all given minutes x1,x2,,xnx_1, x_2, \dots, x_n or say that it is impossible to choose such values of the given properties. If there are multiple answers, you can print any.

输入格式

The first line of the input contains two integers nn and mm ( 2n3105,1m31052 \le n \le 3 \cdot 10^5, 1 \le m \le 3 \cdot 10^5 ) — the number of events and the number of possible settings for the interval between signals.

The second line of the input contains nn integers x1,x2,,xnx_1, x_2, \dots, x_n ( 1xi10181 \le x_i \le 10^{18} ), where xix_i is the minute when ii -th event starts. It is guaranteed that all xix_i are given in increasing order (i. e. the condition x1<x2<<xnx_1 < x_2 < \dots < x_n holds).

The third line of the input contains mm integers p1,p2,,pmp_1, p_2, \dots, p_m ( 1pj10181 \le p_j \le 10^{18} ), where pjp_j is the jj -th option for the interval between two consecutive signals.

输出格式

If it's impossible to choose such values yy and jj so all constraints are satisfied, print "NO" in the first line.

Otherwise print "YES" in the first line. Then print two integers yy ( 1y10181 \le y \le 10^{18} ) and jj ( 1jm1 \le j \le m ) in the second line, where yy is the first minute Ivan's alarm clock should start ringing and jj is the index of the option for the interval between two consecutive signals (options are numbered from 11 to mm in the order they are given input). These values should be chosen in such a way that the alarm clock will ring during all given minutes x1,x2,,xnx_1, x_2, \dots, x_n . If there are multiple answers, you can print any.

输入输出样例

  • 输入#1

    3 5
    3 12 18
    2 6 5 3 3
    

    输出#1

    YES
    3 4
    
  • 输入#2

    4 2
    1 5 17 19
    4 5
    

    输出#2

    NO
    
  • 输入#3

    4 2
    1 5 17 19
    2 1
    

    输出#3

    YES
    1 1
    
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