#Problem 1

accu = 0
for i in range(1, 11):
    accu += i**3/(i*(i+2))
print("The first sum is ", accu, ".")

#Problem 2

accu = 0
i = 1
while i<=10:
    accu += i**3/(i*(i+2))
    i+=1
print("The second sum is ", accu, ".")

#Problem 3

accu = 0
i = 1
while accu <= 10000:
    accu += i*i
    i+=1
print("The value of n is", i-1, "and the sum of squares up to", i-1, "is", accu)