zoj 1414

<span style="font-family:Microsoft YaHei;font-size:12px;">#include<stdio.h>
int main()
{
int n,a,b,i,j;
scanf("%d",&n);
while(n--)
{
scanf("%d%d",&a,&b);
if(a!=b&&(a-b)!=2)
printf("No Number\n");
else if(a%2==0)
{
if(a==b||a-b==2)
printf("%d\n",a+b);
}
else if(a%2!=0)
{
if(a==b||a-b==2)
printf("%d\n",a+b-1);
}
}
return 0;
}</span>