(-1, -1)     Module               	prefix=||	suffix=||	indent=||
(1, 0)       While                	prefix=||	suffix=||	indent=||
(5, 0)       While                	prefix=|\n|	suffix=||	indent=||
(1, 6)       NameConstant         	prefix=||	suffix=||	indent=||
(2, 2)       Expr                 	prefix=|  |	suffix=|\n|	indent=|  |
(3, 2)       Expr                 	prefix=|  |	suffix=|\n|	indent=|  |
(5, 6)       NameConstant         	prefix=||	suffix=||	indent=||
(6, 2)       Expr                 	prefix=|  |	suffix=|\n|	indent=|  |
(8, 2)       Expr                 	prefix=|  |	suffix=|\n|	indent=|  |
(2, 2)       Name a               	prefix=||	suffix=||	indent=|  |
(3, 2)       Name b               	prefix=||	suffix=||	indent=|  |
(6, 2)       Name c               	prefix=||	suffix=||	indent=|  |
(8, 2)       Name d               	prefix=||	suffix=||	indent=|  |
(-1, -1)     Load                 	prefix=||	suffix=||	indent=||
(-1, -1)     Load                 	prefix=||	suffix=||	indent=||
(-1, -1)     Load                 	prefix=||	suffix=||	indent=||
(-1, -1)     Load                 	prefix=||	suffix=||	indent=||
