Hello! This is an assignment given for my grade 12 computer science course. We're programming in Python 2.7 and specifically using recursion to fulfill this assignment. I'm just struggling a bit with the commands and need some help with the assignment.

Name: World War Z PONT DEAD OPEN INSTA E World War Z (Adapted from Flood Filling - John Ketelaars) Zombies have overrun the world. Your only protection is a good wall. Write a program that uses recursion to test your wall by filling all external space with zombies. Have the program declare you living or walking dead if you were located at point H. Print the file before and after the fill. The starting file may have any number of zombies from 0 to n. Zombies are able to push down a wall if 15 or more zombies push against a single wall. NOTE: walls are not destroyed or broken. They are pushed down. A wall can only be pushed down if there is a blank space behind it. Ex: ....W .WW .W WZZZZZZZZZZZZ .WWZZZZZZZZZZzzzzz WZZZZZZZZZZzzzzz H If there is another character (Human or any other letter/symbol other than a period. That item can also prevent the wall from falling. Name: W is a tall wall Z is a zombie is open space (can be filled with zombies as there is no shortage of humans. H is a human (you) Sample input from file ... ..WWWWWWW. .W... ....WWWWWWWWWWWW. .Z.W. WWWW. ....W ... ..WW. ...WW. WW .W. H W ..W. WWW .W. ...W .W.....WW W. .W... WW..WW. W .W....W.....W. .WWW. .W.... WWW.... WWWW. .W... ...W.....WWWWW. WWWWWW. S..... : : : : : .W.. ...ES ::::: :::::: :::::. : : : : : : . . . . . . . . . . . . . . . .W. Sample output to screen ZZZZZWWWWWWW. ZZZZW. WWWWWWWWWWWW. ZZZW. WWWW. Zzzzw. W ZZWW WW. ZW.. .W. ZZW. WWW ZZZWW. W ZZZZZW. zzzzzw.. WW ZZZZzw...WW..WW. W. ZZZZW... W WWW. ZZZW. W... .www....wwww. zzzzw......W.....WWWWW. ZZZZZWWWWWW. 1. HEE .. ...E : . :::: . . . . . . HOW TO IDENTIFY A You Survive ZOMBIE: Name: World War Z PONT DEAD OPEN INSTA E World War Z (Adapted from Flood Filling - John Ketelaars) Zombies have overrun the world. Your only protection is a good wall. Write a program that uses recursion to test your wall by filling all external space with zombies. Have the program declare you living or walking dead if you were located at point H. Print the file before and after the fill. The starting file may have any number of zombies from 0 to n. Zombies are able to push down a wall if 15 or more zombies push against a single wall. NOTE: walls are not destroyed or broken. They are pushed down. A wall can only be pushed down if there is a blank space behind it. Ex: ....W .WW .W WZZZZZZZZZZZZ .WWZZZZZZZZZZzzzzz WZZZZZZZZZZzzzzz H If there is another character (Human or any other letter/symbol other than a period. That item can also prevent the wall from falling. Name: W is a tall wall Z is a zombie is open space (can be filled with zombies as there is no shortage of humans. H is a human (you) Sample input from file ... ..WWWWWWW. .W... ....WWWWWWWWWWWW. .Z.W. WWWW. ....W ... ..WW. ...WW. WW .W. H W ..W. WWW .W. ...W .W.....WW W. .W... WW..WW. W .W....W.....W. .WWW. .W.... WWW.... WWWW. .W... ...W.....WWWWW. WWWWWW. S..... : : : : : .W.. ...ES ::::: :::::: :::::. : : : : : : . . . . . . . . . . . . . . . .W. Sample output to screen ZZZZZWWWWWWW. ZZZZW. WWWWWWWWWWWW. ZZZW. WWWW. Zzzzw. W ZZWW WW. ZW.. .W. ZZW. WWW ZZZWW. W ZZZZZW. zzzzzw.. WW ZZZZzw...WW..WW. W. ZZZZW... W WWW. ZZZW. W... .www....wwww. zzzzw......W.....WWWWW. ZZZZZWWWWWW. 1. HEE .. ...E : . :::: . . . . . . HOW TO IDENTIFY A You Survive ZOMBIE