#include<stdio.h>
void main()
{
    int n,a,sum,result;
    result=0;
    n=2;
    while(n<=1000)
        {a=1;
    while(a<n)
        {if(n%a==0)
        {
            sum=sum+a;
            a++;}
        else
            a++;}
    if(sum==n)
        {printf("%d+",n);
    result=result+n;
    n++;}
    else
        n++;}
        printf("=%d",result);
    }