1```cpp

#include<iostream>
using namespace std;
int main()
{
	bool b[4][4]{};
	string s;
	cin >> s;
	if (s.size() < 9)
	{
		if (s.size() % 2 == 1)
		{
			cout << "xiaoa wins.";
			return 0;
		}
		else
		{
			cout << "uim wins.";
			return 0;
		}
	}
	for (int i = 0; i < s.size(); i++)
	{
		if (i % 2 == 0)
		{
			b[((s[i]-'0') - 1) / i + 1][(s[i]-'0') % 3 == 0 ? (s[i]-'0') % 3 : 3] = 0;
		}
		else
		{
			b[((s[i]-'0') - 1) / i + 1][(s[i]-'0') % 3 == 0 ? (s[i]-'0') % 3 : 3] = 1;
		}
	}
	if ((b[1][1] == 0 && b[1][2] == 0 && b[1][3] == 0) || (b[2][1] == 0 && b[2][2] == 0 && b[2][3] == 0) || (b[3][1] == 0 && b[3][2] == 0 && b[3][3] == 0) || (b[1][1] == 0 && b[2][1] == 0 && b[3][1] == 0) || (b[1][2] == 0 && b[2][2] == 0 && b[3][2] == 0) || (b[1][3] == 0 && b[2][3] == 0 && b[3][3] == 0) || (b[1][1] == 0 && b[2][2] == 0 && b[3][3] == 0) || (b[1][3] == 0 && b[2][2] == 0 && b[3][1] == 0))
	{
		cout << "xiaoa wins.";
	}
	else if ((b[1][1] == 1 && b[1][2] == 1 && b[1][3] == 1) || (b[2][1] == 1 && b[2][2] == 1 && b[2][3] == 1) || (b[3][1] == 1 && b[3][2] == 1 && b[3][3] == 1) || (b[1][1] == 1 && b[2][1] == 1 && b[3][1] == 1) || (b[1][2] == 1 && b[2][2] == 1 && b[3][2] == 1) || (b[1][3] == 1 && b[2][3] == 1 && b[3][3] == 1) || (b[1][1] == 1 && b[2][2] == 1 && b[3][3] == 1) || (b[1][3] == 1 && b[2][2] == 1 && b[3][1] == 1))
	{
		cout << "uim wins";
	}
	else
	{
		cout << "drew";
	}
	return 0;
}