Solution for <a href="Practice_code3.md">Code Practice 3</a>

IN [1]

# Question 1
n = int(input())
sum = 0
for i in range(1,n+1):
    sum += i
print(sum)

stdin

 10

stdout

55

IN [3]

# Question 2
n = int(input())
sum = 0
for i in range(n):
    sum += int(input())
print(sum)

stdin

 10
 1
 5
 7
 22
 20
 40
 2
 53
 18
 -1

stdout

167

IN [5]

# Question 5
n = int(input())
fac = 1
while n>0:
    fac *= n
    n -= 1
print(fac)

stdin

 6

stdout

720

IN [None]