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