learning comparators and Boolean operators
print 10==15-5
print 14==12+2
print 4==4*1
print 10==20/2
print 20!=30
print 15>6
print 40<80
print 30<=30
print 20<=19+1
print not not not False
print False and False
print +3==+3 and 6>20
print 11<-2 or False
print -10 or-10
print 3>7 or 5>15
print not 50*70<3
print False or not True and True
print False and not True or True
print True and not(False or False)
print not not True or False and not True
