program

#include <iostream>

using namespace std;
int c[10000000],A[1000];
void csere(int &a, int &b)
{
    int s=a;
    a=b;
    b=s;
}
int main()
{
    int n=100, i, j, k;
    for (i=2; i<=n; i++) c[i]=i;
        i=2;
    int f=n/2;
    while (i<=f)
    {
        if (c[i])
        {

            j = 2 * i;
            while (j <= n)
            {
                c[j] = 0;
                j += i;
            }
        }
        i++;
    } //while vege
    for (int ii = 1; ii <= n; ii++)
        if (c[ii]) cout<<ii<<' ';
    cout<<endl;
    int u,s;
    int d[1000],l=1,a=1;
    d[1000]={};
    for(int j=1;j<=n;j++)
    {
        if(c[j])
        {
            d[l]=j;//ide menti a primeket
            l++;
            if(l>3)
            {
                A[a]=d[a]+d[a+1]+d[a+2];
                cout<<d[a]<<' ';
                a++;


            }
        }
    }
    while(A[u]<=n)
        u++;
    u--;
    cout<<endl;
    cout<<n<<": "<<A[u]<<endl;
    cout<<d[u]<<' '<<d[u+1]<<' '<<d[u+2]<<' ';
    return 0;
}