#round(number, digits)
x = 3.14159265359
print(round(x)) #output: 3
print(round(x, 3)) #output: 3.141
print(round(x, 1)) #output: 3.1
y = 8452.157954
print(round(y)) #output: 8452
print(round(y, -3)) #output: 8000
print(round(y, -1)) #output: 8450