'''
f = open("dane.txt","w")

print(f)
print("Otwieram plik: ", f.name, "w trybie: ", f.mode)

f.close()

try:
    g = open("test.txt", "rb")
    print(g)
except IOError:
    print ("Nie mogę otworzyć tego pliku")

h = open("dane.txt","r")

h.write("kawecki")

h.close()

print(h.read())

d = open("dane.txt","a")

d.write("xd")

d.close()

d = open("dane.txt","r")

print(d.read())

h = open("dane.txt","r")

for dane in h:
    print(dane)

a=b=c=10

print(a, end=' ')
print (b, end=' ')
print(c)

print(a,b,c, sep=',')

h = open("dane.txt","r")

for dane in h:
    print(dane, end='')

for dane in h:
    print(dane.strip())

for dane in h:
    print(dane.split())
'''

from random import randint

plik = open("dziennik.txt","w")

for i in range(310):
    plik.write(str(randint(400,600))+'\n')

plik.close()

plik = open("dziennik.txt","r")

wynik=[]

for i in plik:
    wynik.append(int(i))

for i in range(len(wynik)):
    print(wynik[i])

plik.close()