#include<stdio.h>#include<math.h>int prime(int x,int y){ int a,i,b; while(a=x+1,a<=y) { b=sqrt(a); for(i=2;i<b;i++) if(a%2==0) break; } if(i>b) return 1; else return 0; }int main(){ int m,n,a,b; scanf("%d %d",&m,&n); if(prime(m,n)==1) printf("%d ",a); else printf("No Answer"); return 0;}