in ARM assembly for Raspberry Pi$.$ Please provide explanation and output

Write an assembly language program to sum up a list of $50$ numbers that are read in and stored in memory. Here is the algorithm you are to translate $.$

$*$ Read in $50$ numbers A$1,$ A$2,...,$ A$50$Set Sum to $0$Set i to $1$While the value of i is less than or equal to $50$Sum $=$ Sum $+$ A$$ i $=$ i $+1$End of the loop$$Write out the value of Sum

Please Use this set up$.$

$.$text$.$global main

main:

#Save return to Os on stack

SUB sp$,$sp #$4$

STR lr$,[$sp$,$#$0]$

#Enter program here

#return to the OS

LDR lr$,[$sp$,$#$0]$

ADD sp$,$sp$,$ #$4$

MOV pc$,$ lr

$.$data