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