def Div(n):

for i in range(2, int(n**0.5)+1):

if n % i == 0:

return False

return True

mini = 1000000

for x in range(100):

for y in range(100):

s = '0' + '1'* x + '2'* y

if len(s) > 40:

while ('01' in s) or ('02' in s):

s = s.replace('02','1110',1)

s = s.replace('01','220',1)

if Div(s.count('1') + s.count('2') * 2):

mini=min(mini,x + 2*y)

print(mini)

from random import shuffle

h=[]

for i in range(40,60):

for k in range (0,i+1):

for j in range(0,50):

a = list('1'*(i-k)+'2'*k)

shuffle(a)

a = '0'+''.join(a)

c = sum([int(x) for x in a])

while ('01' in a) or ('02' in a):

a = a.replace('02','1110',1)

a = a.replace('01','220',1)

b = sum([int(x) for x in a])

p = []

for d in range(1,int(b**0.5)+1):

if b%d == 0:

p.append(d)

if d!=b//d:

p.append(b//d)

if len(p)==2:

h.append(c)

print(min(h))

def prostoe(n):

k = 2

while k**2 <= n :

if n%k == 0: return False

k += 1

return True

# x - ко­ли­че­ство еди­ниц, y - ко­ли­че­ство двоек

a=[x + 2*y for x in range(100) for y in range(100) if x + y >= 40 and prostoe(4*x + 3*y)]

print(min(a))

from itertools import product

def f(a):

a = int(a)

for x in range(2, int(a**0.5)+1):

if a % x == 0:

return False

else:

return True

e = product('12',repeat = 39)

for w in e:

w = list(w)

w.insert(0, '0')

g = ''.join(w)

while ('01' in g) or ('02' in g):

g = g.replace('02','1110',1)

g = g.replace('01','220',1)

if f(g):

h = map(int,g)

h = sum(h)

break

break

print(h)