#include<bits/stdc++.h>
using namespace std;
int main()
{
	char a;
	cin >> a;
	cout << (int)a;
	return 0;
}

#include<bits/stdc++.h>
#define it long long
using namespace std;
char a;
int main(){
	cin>>a;
	cout<<int(a)<<"\n";
	return 0;
}

强转

#include<bits/stdc++.h>
using namespace std;
int main()
{
	char a;
	cin >> a;
	cout << (int)a;
	return 0;

#include <bits/stdc++.h>
using namespace std;
int main(int argc, char **argv){
	char a;
	cin >> a;
	cout << (int)a;
	return 0;
}