# include<iostream> using namespace std; int main(){ char s; int a,b; cin.get(s); a=(int)s-1; if(a>=32 && a<=126){ cout<<a; } else{ cout<<"Input Error!"; } cout<<endl; b=(int)s+1; if(b>=32 && b<=126){ cout<<b; } else{ cout<<"Input Error!"; } return 0; }