整数解
#描述#
有二个整数，它们加起来等于某个整数，乘起来又等于另一个整数，它们到底是真还是假，也就是这种整数到底存不存在，实在有点吃不准，你能快速回答吗？看来只能通过编程。</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">
例如：</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span lang="EN-US">x + y = 9</span><span style="font-family: 宋体">，</span><span lang="EN-US">x
* y = 15 ? </span><span style="font-family: 宋体">找不到这样的整数</span><span lang="EN-US">x</span><span style="font-family: 宋体">和</span><span lang="EN-US">y</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt">
<span lang="EN-US" style="font-family:"Courier New"">1+4=5</span><span style="font-family: 宋体">，</span><span lang="EN-US" style="font-family:"Courier New"">1*4=4</span><span style="font-family: 宋体">，所以，加起来等于</span><span lang="EN-US" style="font-family:"Courier New"">5</span><span style="font-family: 宋体">，乘起来等于</span><span lang="EN-US" style="font-family:"Courier New"">4</span><span style="font-family: 宋体">的二个整数为</span><span lang="EN-US" style="font-family:"Courier New"">1</span><span style="font-family: 宋体">和</span><span lang="EN-US" style="font-family:
"Courier New"">4</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt">
<span lang="EN-US" style="font-family:"Courier New"">7+(-8)=-1</span><span style="font-family: 宋体">，</span><span lang="EN-US" style="font-family:"Courier New"">7*</span><span style="font-family: 宋体">（</span><span lang="EN-US" style="font-family:
"Courier New"">-8</span><span style="font-family: 宋体">）</span><span lang="EN-US" style="font-family:"Courier New"">=-56</span><span style="font-family: 宋体">，所以，加起来等于</span><span lang="EN-US" style="font-family:"Courier New"">-1</span><span style="font-family: 宋体">，乘起来等于</span><span lang="EN-US" style="font-family:"Courier New"">-56</span><span style="font-family: 宋体">的二个整数为</span><span lang="EN-US" style="font-family:"Courier New"">7</span><span style="font-family: 宋体">和</span><span lang="EN-US" style="font-family:
"Courier New"">-8
#格式#
##输入格式##
输入数据为成对出现的整数n，m（-10000<n,m<10000），它们分别表示整数的和与积，如果两者都为0，则输入结束。
##输出格式##
只需要对于每个n和m，输出“Yes”或者“No”，明确有还是没有这种整数就行了。
#样例1#
##样例输入1##
9 15
5 4
1 -56
0 0
##样例输出1##
No
Yes
Yes
#限制#
1000ms
32768KB
#提示#
#来源#
qianneng
