#include <iostream>
using namespace std;
void recur(int n,int value,int count)
{
if(count==0)
return;
else
{
cout<<value<<" ";
recur(n,value+n,count-1);
}
}
int main() {
for(int i=1;i<=10;i++)
{
recur(i,i,i);
cout<<endl;
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwp2b2lkIHJlY3VyKGludCBuLGludCB2YWx1ZSxpbnQgY291bnQpCnsKCSBpZihjb3VudD09MCkKCSByZXR1cm47CgkgZWxzZQoJIHsKCSAJY291dDw8dmFsdWU8PCIgIjsKCSAJcmVjdXIobix2YWx1ZStuLGNvdW50LTEpOwoJIH0KfQoKaW50IG1haW4oKSB7CiAgICBmb3IoaW50IGk9MTtpPD0xMDtpKyspCiAgICB7CiAgICAJcmVjdXIoaSxpLGkpOwogICAgCWNvdXQ8PGVuZGw7CiAgICB9CglyZXR1cm4gMDsKfQ==