#include <bits/stdc++.h> using namespace std; int main() { int a; cin>>a; if(a<7) { cout<<"Acidic"; } else if(a==7) { cout<<"neutral"; } else { cout<<"alkalinity"; } return 0; }

#include<bits/stdc++.h> using namespace std; int main(){ int ph; cin>>ph; if(ph<7){//判断条件 cout<<"Acidic"; } else if(ph>7){//判断条件 cout<<"alkalinity"; } else if(ph==7){//判断条件 cout<<"neutral"; } }

#include <iostream> using namespace std; int main(){ int a; cin >> a; if (a<7) cout<<"Acidic"; else if (a==7) cout<<"neutral"; else cout<<"alkalinity"; }

#include <iostream> using namespace std; int main(){ int h;cin>>h; if(h>7){ cout<< "alkalinity"; } else if(h<7){ cout<< "Acidic"; } else{ cout<<"neutral"; } return 0; }