#include <iostream>

using namespace std;

int main()
{
    int i, suma, n;
    suma = 0;
    for(i = 0; i<100; i++){
            suma = suma + i;
    cout <<  i << "+" ;}
    suma = suma + 100;
    cout<< 100 << "=" << suma << endl;
    cout<<"n=";
    cin >> n;
    suma = 0;
    for(i = 0; i<n; i++){
            suma = suma + i;
    cout <<  i << "+" ;}
    suma = suma + n;
    cout<< n << "=" << suma<<endl<<endl;
    suma = 0;
    for(i = 2; i<100; i=i+2){
            suma = suma + i;
    cout <<  i << "+" ;}
    suma = suma + 100;
    cout<< 100 << "=" << suma << endl;
    return 0;
}