#define A 3
int main()
{
    int grades [A] ={0}; 
    int i = 0;
    int max = 0;
    for (i = 0;i < A;i++)
    {
        scanf ("%d",&grades[i]);
    }
    for (i = 0;i < A;i++)
    {
        if (grades[i] > max)
        {
            max = grades[i];
        }
    }
    printf ("%d",max);
    return 0;
}