without multipltion and division

Write a MIPS assembly program that asks the user for file name (max 50 chars). Open the file for reading. Next, read the file contents as characters (max 100 chars). After that, loop over each character, if the character is filename: space 50 a digit (i.e. ' 0 ' to ' 9 '), convert it to integer and filecontents: .space 100 store it in another array called "array_int". Assume the maximum number of integers array_int: .word 0:20 in the file is 20. Finally, print "array_int" in reverse order. Sample File (numbers.txt) 123456 79 hello, world 851