if "" then
  print "0"
else
  print "1"
endif

if "aa" then
  print "1"
else
  print "0"
endif


if 0 then
  print "0"
else
  print "1"
endif

if 1 then
  print "1"
else
  print "0"
endif

if 0.0 then
  print "0"
else
  print "1"
endif

if 1.0 then
  print "1"
else
  print "0"
endif