Простые числа

input_file = open('input.txt')
M, N = [int(i) for i in input_file.readline().split()]
a = ''
l = [True for i in range(N + 1)]
l[1] = l[0] = False
for i in range(2, N + 1):
    if l[i] == True:
        for j in range(i * i, N + 1, i):
            if j % i == 0:
                l[j] = False

for i in range(M, N + 1):
    if l[i] == True:
        print(i)
        a = ' '
if a == '':
    print('Absent')