#include <iostream>
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

void suma() {
	int a=0, b=0, c=0;
	cout<<"Podaj sumę liczb: ";
	cin>>a;
	for(int i=0;i<a;i++){
		b=b+1;
		c=c+b;
		cout<<b<<endl;
	}
	cout<<"Razem: "<<c;
}
void sl() {
	int a=0, b=0, c=1;
	cout<<"Podaj sumę liczb: ";
	cin>>a;
	for(int i=0;i<a;i++){
		b=b+1;
		c=c*b;
		cout<<b<<endl;
	}
	cout<<"Razem: "<<c;
}

main() {
	char w;
	cout<<"Suma a | silnia b | ";
	cin>>w;
	switch(w) {
		case 'a': {
			suma();
			break;
		}
		case 'b': {
			sl();
			break;
		}
	}
}