import random

def ratio():
    boys = 0
    girls = 0
    ratio = 0
    for i in range(1000000):
        pb = random.randrange(0,2)
        if pb == 0:
            girls += 1
        else:
            boys += 1
    ratio = round(boys/girls,2)

    return ratio

if __name__ == "__main__":
    r = ratio()
    print(r)