print "foo   bar"
print "foo
bar"

foo = "fo o"
bar = " bar "

print "$foo"
print "$bar"
print "$foo $bar"
print "$foo$bar"

print "[ $foo ]"
print "[ $bar ]"
print "[ $foo $bar ]"
print "[ $foo/$bar ]"

print $foo'bar'
print $foo"$bar"
print "$foo"bar

./: