import time
start_time = time.time()
for a in range(0,1001):
    for b in range(0,1001):
        c = 1000 - a - b
        if a**2 + b**2 == c**2:
            print(a,b,c)
end_time = time.time()
print('程序花费时间{}'.format(end_time - start_time))
