#include<bits/stdc++.h> using namespace std; int main(){ char ch; cin.get(ch); int a=ch; if((a-1)<=32 and (a-1)>=126){ cout<<a-1<<endl; } else{ cout<<"Input Error!"; } if((a+1)<=32 and (a+1)>=126){ cout<<a+1; } else{ cout<<"Input Error!"; } }