Arraymax3

#include <bits/stdc++.h>

using namespace std;
int main(){
    int m_1,m_2,m_3;
    int temp;
    int dem = 0;
    m_1=m_2=m_3=INT_MIN;
    while(cin>>temp){
        if (temp>m_1)
        {
            m_3=m_2;
            m_2=m_1;
            m_1=temp;
        }
        else{
            if(temp>m_2)
                {
                    m_3=m_2;
                    m_2=temp;
                }
            else
                {
                    if (temp>m_3)
                    m_3=temp;
                }
        }
        dem++;
    }
    if (dem==1) cout<<m_1;
    else
        if (dem==2) cout<<m_1<<" "<<m_2;
        else cout<< m_1<<" "<<m_2<<" "<<m_3;
}