5 1 1 1 1 1 1
lock
a = 1
unlock
lock
b = 2
unlock
lock
c = 3
d = 4
unlock
print a
print b
print c
e = 10
f = 15
g = 20
print d
print e
print f
print g
end
h = 50
i = 55
j = 60
lock
print a
unlock
print h
print i
print j
end
k = 75
l = 80
m = 85
lock
print b
unlock
print k
print l
print m
end
n = 90
o = 91
p = 92
lock
print c
unlock
print n
print o
print p
end
q = 95
r = 96
s = 97
lock
print d
unlock
print n
print o
print p
end