###### test: sayhello
- program As Bs astr bbools:
- A := $As; B := $Bs
- bbool := bbools == "True"
+ program ac av:
+ A := $av[1]; B := $av[2]
+ astr := av[3]
+ bbool := av[ac-1] == "True"
print "Hello World, what lovely oceans you have!"
/* When a variable is defined in both branches of an 'if',
* and used afterwards, the variables are merged.