primes
sieve
from
s
s
0
from
X
cons
X
n__from
s
X
head
cons
X
Y
X
tail
cons
X
Y
activate
Y
if
true
X
Y
activate
X
if
false
X
Y
activate
Y
filter
s
s
X
cons
Y
Z
if
divides
s
s
X
Y
n__filter
s
s
X
activate
Z
n__cons
Y
n__filter
X
sieve
Y
sieve
cons
X
Y
cons
X
n__filter
X
sieve
activate
Y
from
X
n__from
X
filter
X1
X2
n__filter
X1
X2
cons
X1
X2
n__cons
X1
X2
activate
n__from
X
from
X
activate
n__filter
X1
X2
filter
X1
X2
activate
n__cons
X1
X2
cons
X1
X2
activate
X
X
2.2
if
false
X
Y
activate
Y
filter
s
s
X
cons
Y
Z
if
divides
s
s
X
Y
n__filter
s
s
X
activate
Z
n__cons
Y
n__filter
X
sieve
Y
sieve
cons
X
Y
sieve
activate
Y
if
true
X
Y
activate
X
primes
from
s
s
0
sieve
cons
X
Y
cons
X
n__filter
X
sieve
activate
Y
sieve
cons
X
Y
activate
Y
filter
s
s
X
cons
Y
Z
activate
Z
primes
sieve
from
s
s
0
activate
n__cons
X1
X2
cons
X1
X2
activate
n__filter
X1
X2
filter
X1
X2
from
X
cons
X
n__from
s
X
filter
s
s
X
cons
Y
Z
sieve
Y
tail
cons
X
Y
activate
Y
activate
n__from
X
from
X
true
tail
cons
X
Y
activate
Y
false
primes
from
s
s
0
false
if
true
X
Y
activate
X
false
primes
sieve
from
s
s
0
false
if
false
X
Y
activate
Y
false
sieve
cons
X
Y
activate
Y
filter
s
s
X
cons
Y
Z
sieve
Y
activate
n__filter
X1
X2
filter
X1
X2
sieve
cons
X
Y
sieve
activate
Y
filter
s
s
X
cons
Y
Z
activate
Z
true
cons
2
0
s
1
1
0
activate
1
1
0
filter
2
1
520
2
1
0
n__from
1
1
20797
activate
1
1
1
false
0
1166
head
1
0
primes
0
0
true
0
0
tail
1
0
0
0
0
if
3
1
261
2
0
3
0
0
from
1
1
20797
n__cons
2
1
260
2
0
0
n__filter
2
1
519
2
0
0
tail
1
0
sieve
1
1
259
from
1
0
head
1
0
cons
2
1
260
2
0
0
if
3
0
filter
2
1
519
2
0
0
primes
0
0
sieve
1
1
2
divides
2
1
1
0
filter
s
s
X
cons
Y
Z
activate
Z
sieve
cons
X
Y
sieve
activate
Y
activate
n__filter
X1
X2
filter
X1
X2
activate
X
X
sieve
cons
X
Y
cons
X
n__filter
X
sieve
activate
Y
if
true
X
Y
activate
X
filter
X1
X2
n__filter
X1
X2
filter
s
s
X
cons
Y
Z
if
divides
s
s
X
Y
n__filter
s
s
X
activate
Z
n__cons
Y
n__filter
X
sieve
Y
activate
n__cons
X1
X2
cons
X1
X2
activate
n__from
X
from
X
cons
X1
X2
n__cons
X1
X2
from
X
n__from
X
activate
n__filter
X1
X2
filter
X1
X2
if
false
X
Y
activate
Y
from
X
cons
X
n__from
s
X
sieve
cons
X
Y
sieve
activate
Y
true
Failed!
NaTT
certifiable-1.6