Could someone tell me what is wrong with this C++ code?

#include

using namespace std;

int main() {

int nextChoice;

cin >> nextChoice;

switch (nextChoice) {

case 0:

cout << "Rock" << endl;

break;

case 1:

cout << "Paper" << endl;

break;

case 2:

cout << "Scissors" << endl;

break;

default:

cout >> "Unknown" << endl;

}

system("pause");

return 0;

}