#include <stdio.h>

int main()
{
    int iterations = 256*256*256;
    int successes_amount = 0;

    for (int a = 0; a < 256; a++)
    {
        for (int b = 0; b < 256; b++)
        {
            for (int c = 0; c < 256; c++)
            {
                if (a + b + c > 300)
                {
                    successes_amount++;
                }
            }
        }
    }

    printf("Iterations: %d\n", iterations);
    printf("Valid sums: %d\n", successes_amount);
    printf("Probability: %f\n", (float) successes_amount / iterations);

    return 0;
}