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