``cpp
//#pragma GCC optimize(2)
//#pragma GCC optimize(3,“Ofast”,“inline”)
#include <bits/stdc++.h>
#define intt register int
#define ll long long
using namespace std;
string a;
int main() {
	ios::sync_with_stdio(0);
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);
	cout.tie(NULL);
	getline(cin, a);
	int len = a.size(), lenk = 0, lai = 0;
	for (int i = 0; i < len; i++) {
		if (a[i] == ' ') {
			for (int j = lenk + lai - 1; j >= lai; j--) {
				cout << a[j];
			}
			lenk = 0;
			cout << "\n";
			lai = i+1;
		} else {
			lenk++;
		}
	}
	for (int j = lenk + lai - 1; j >= lai; j--) {
		cout << a[j];
	}
	return 0;
}


``

求调