CHANGES = [1.00, 0.50, 0.25, 0.10, 0.05, 0.01]

def getChange(R):
    for change in CHANGES:
        num = int(R / change)
        print 'int(%s)\t = %s' % (R/change, num)
        R = R - num * change
    print 'R = %s' % R
getChange(4.01)