# https://www.codingame.com/playgrounds/56923/apprendre-les-bases-de-python-pour-reussir-en-n-s-i-/cours---les-boucles-while

# QCM
# QCM 1		0 / 2 / 4
# QCM 2		2 / 4 / 6
# QCM 3		n<= 12	ET  n < 14 	ET n**2 < 145
# QCM 4		n²²2 + 3*n < 1000
# QCM 5		somme += 2*n
# QCM 6		1/n > 0.12345
#

# Exercices 1

n = 0
while (n+1)*(n+3) < 12345 :
    n+=1
print(n)


# Exercice 2

n = 4
somme = 0
while somme < 12345 :
    n += 1
    somme += n 
print(n)


# Exercice 3

n = 0
somme = 0
while somme < 12345 :
    n += 1
    somme += n**2 
print(n)