print(1+2+3+4+5+6+7+8+9+10)
print(sum([n for n in range(11)]))
print(sum(range(11)))
print((1+ 10) * 10 /2)
print(reduce(lambda a, b: a+b, range(1, 11)))
55
55
55
55.0
55
print(1+2+3+4+5+6+7+8+9+10)
print(sum([n for n in range(11)]))
print(sum(range(11)))
print((1+ 10) * 10 /2)
print(reduce(lambda a, b: a+b, range(1, 11)))
55
55
55
55.0
55