#include <iostream>
using namespace std;

void main(void)
{
	char str[] = "ChorOscho u nas na forume";

	for(int i = 0; str[i] != '\0'; i++)
	{
		if((str[i] == 'o')||(str[i]=='O')) { str[i] = 'a'; }
	}

	cout << str << endl;
}