rec_direction.cpp

#include<bits/stdc++.h>
usingnamespacestd;

#definelllonglong
#definepb push_back
#definemod1000000007
#defineendl'\n'
voiddec(int n){
if(n==0)
return ;
 cout<<n<<"";
dec(n-1);

}

//the code will go towards base case
voidinc(int n){
if(n==0)
return ;
dec(n-1);
 cout<<n<<"";

}
//jab bhi code recusive function ke baad likha ho then the code will from away from the base case


intmain(){
 cin.tie(0)->sync_with_stdio(0);
int n;
 cin>>n;
dec(n);
 cout<<endl;
inc(n); 
return0;
}