[cpp]
#include
int main()
{
int n; www.2cto.com
while(scanf("%d",&n)!=EOF)
{
if(n>0&&n<10)
{
printf("Yes!\n");
else
printf("No!\n");
}
else
{
if((n*n)%100==n)
printf("Yes!\n");
else
printf("No!\n");
}
}
}