HDU

#include<stdio.h>#include<math.h>int main(){    int a,b,suma,sumb,i,j,m;scanf("%d",&m);for(i=1;i<=m;i++){    scanf("%d%d",&a,&b);suma=0;  for(j=1;j<a;j++)  {      if(a%j==0)  suma=suma+j;  }  sumb=0;  for(j=1;j<b;j++)  {      if(b%j==0)  sumb=sumb+j;  }  if(a==sumb&&b==suma)  printf("YES\n");  else  printf("NO\n");}return 0;}