854A - Fraction - CodeForces Solution

#include<bits/stdc++.h>
using namespace std;


int main(){
    int n;
    cin>>n;
    if(n%2==0){
        int first=n/2-1,second=n/2+1;
        if(first%2==0){
            cout<<first-1<<" "<<second+1<<endl;
            return 0;
        }
        cout<<first<<" "<<second<<endl;
    }else{
        cout<<n/2<<" "<<n/2+1<<endl;
    }
    return 0;
}