#include<bits/stdc++.h> using namespace std; int main(){ int m,n,sum=0; cin>>m>>n; for(int i=m;i<=n;i++){ if(i%2!=0){ sum+=i; } } cout<<sum; return 0; }

#include<iostream>
using namespace std;
int main(){
    int n;
    cin>>n;
    if(n%2==0){
    cout<<"even";
}
    else{
    cout<<"odd";
	}
    return 0;
}

#include<iostream>
using namespace std;
int main(){
    int n;
    cin>>n;
    if(n%2==0){
    cout<<"even";
}
    else{
    cout<<"odd";
	}
    return 0;
}

😄

#include<iostream>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n%2==0) cout<<"even";
	if(n%2!=0) cout<<"odd";
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a;
    cin>>a;
    if(a%2==0){
    cout<<"even";
}
    if(a%2!=0){
    cout<<"odd";
}
return 0;
}

#include using namespace std; int main(){ int n; cin>>n; if(10<=n and n<=99){ cout<<1; }else{ cout<<0; } return 0; }