#include using namespace std; int main() { int num; cin >> num; cout << num << endl; return 0; }

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

int main() { int a; cin>>a; cout<<a<<endl;

return 0;

}

#include <bits/stdc++.h> using namespace std; int main() { int a; cin>>a; cout<<a; return 0; }

#include using namespace std;

int main(){

int a; 
cin>>a; 
cout<<a; 

return 0; }

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include后面加