Write а functiоn nаmed fоо thаt has two parameters named y and x. The function returns the outcome of adding up values from -y to 0, with each value raised to the power of x, if y is positive.If y is negative, the function returns y.If y is 0, the function returns -1.You must use a for loop with the range function. For example, when we pass 5 and 3 to the function it returns the sum of all integers of -53, -43, -33, -23, -13.If we pass -5, and any other value for x, the outcome is -5.If we pass 0 and any other value for x, the outcome is -1.