#! /usr/bin/python
from random import choice
def sample():
    boxes = [['gold', 'silver'], ['gold', 'gold']]
    box = choice(boxes)
    box.remove('gold')

    for box in boxes:
        if len(box) == 1:
            if box[0] == 'gold':
                return 'True'

def main():
    x = []
    for i in range(10000):
        x.append(sample())
    print x.count('True')

if __name__ == "__main__":
    import sys
    main()
    sys.exit()