if(1)
	*| a
		| -> a
*| b
	| -> b
:@choice = 1

if(1, $*| a)
	| -> a
*| b
	| -> b
choice = 2

if((), $*| a)
	| -> a
*| b
	| -> b
choice = 1

*| a
	| -> a
25 # *| b
	| -> b
choice = 2

12 # if((), $*| a)
	| -> a
3 # *| b
	| -> b
choice = 1

12 # if(1, $*| a)
	| -> a
3 # *| b
	| -> b
choice = 1