class Reverse
{
    // Complete the function
    // str: input string
    public static String reverseWord(String str)
    {
        // Reverse the string str
        int n = str.length();
        char ch[] = str.toCharArray();
        for(int i = 0; i<n/2; i++)
        {
            char t = ch[i];
            ch[i] = ch[n-i-1];
            ch[n-i-1]=t;
        }
        return new String(ch);
    }
}