Python 2.7 programming

1] Write a program with a function repeat_string, which takes two arguments, an integer m and a string st The function returns st, repeated a number of times equal to m. Print the result in the main program. 2]Write a function whose two arguments are two lists of numbers. The function returns the sum of all the numbers in the two lists. Note: You are not allowed to use the Python function sum, use a for loop instead to add up the list elements! . Test the function in the main program with these lists for arguments: [2, 3, 4] and [20, 30, 40, 50]