#include <stdio.h>
int main()
{
    int a,b,c,n=10;
    scanf("%d %d %d",&a,&b,&c);
    while ((n-a)%3!=0||(n-b)%5!=0||(n-c)%7!=0){
    n++;}
    if(n<=100)printf("%d",n);
    else printf("No answer");
}