3. Define a value-returning function trimBlanks with one string parameter. The function will remove all blanks at the beginning of any string given as parameter and return the changed string. Assume the string entered as parameter is not empty. Do not use the string method trim(...). Call and test your function in a print statement. Test your function using the following arguments: a) House" b) (just blanks) c) house 66 Challenge a) Also remove all blanks at the end of the string given as parameter