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