Problem1:
Write a RISC-V assembly code to implement the multiply operation on two unsigned
integers (32-bit) using repeated addition (i.e. you are NOT allowed to use multiply
instruction). The code should contain a main part and a recursive procedure that
performs the multiplication algorithm on the two unsigned integers given as parameters.

Problem2:
Write a RISC-V assembly code that toggles the case of each alphabet in an input string.
Non-alphabet characters should remain the same. For example, if the input string is
“Welcome to RISC-V” then it should be toggled to “wELCOME TO risc-v”. The code
should contain a main part and a leaf procedure that performs the toggling on the
predefined string using iterations