题解

#include<bits/stdc++.h>
#define ll long long                                                        //防伪标识
#define MAXN 1005
#define maxn 10005
#define MAXM 10000
#define maxm 1000005
using namespace std;
int a,b,c;
int main(){
	cin>>a>>b>>c;
	if(a>0) cout<<a<<endl;
	if(b>0) cout<<b<<endl;
	if(c>0) cout<<c;
	
	return 0;
}