include <iostream>
include <string>
using namespace std;
int main()
{
string s1.s2;
cin >> s1 >> s2;
cout << s2 << ' ' << s1 << '\n';
return 0
}
aW5jbHVkZSA8aW9zdHJlYW0+CmluY2x1ZGUgPHN0cmluZz4KCnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpCnsgCglzdHJpbmcgczEuczI7CgljaW4gPj4gczEgPj4gczI7CgkKCWNvdXQgPDwgczIgPDwgJyAnIDw8IHMxIDw8ICdcbic7CgkKCXJldHVybiAwCn0=
Main.java:1: error: class, interface, or enum expected
include <iostream>
^
Main.java:6: error: class, interface, or enum expected
int main()
^
Main.java:9: error: class, interface, or enum expected
cin >> s1 >> s2;
^
Main.java:11: error: class, interface, or enum expected
cout << s2 << ' ' << s1 << '\n';
^
Main.java:13: error: class, interface, or enum expected
return 0
^
5 errors