def Greeting():
    print('Welcome to CS 101')
    print('I hope you are having a great morning')
    print('There is no lab today or tomorrow')
    
def repeatGreeting(s,n):
    return s * n

import math
def area_circle(r):
    return math.pi * (r ** 2)

def volume_cone(radius, height):
    return (1/3) * (math.pi * radius ** 2 ) * height


def volume_cone2(r, h):
    return (1/3) * area_circle(r) * h


def missingchar(s,n):
    """ Removes n which is index in the string"""
    return s[0:n]+s[n+1:]

def remove_char(s,c):
    return s[0:s.find(c)]+s[s.find(c)+1:]


def remove_char2(s,c):
    pos = s.find(c)
    return s[0:pos]+s[pos+1:]

def remove_char3(s,c):
    pos = s.find(c)
    return missingchar(s,pos)

def weeklyWage(hours, hourlyWage):
    """ comments"""
    if hours > 40:
        return (hours - 40) * (3/2) * hourlyWage + 40 * hourlyWage
    else:
        return hours * hourlyWage
    
def weeklyWage2(hours, hourlyWage):
    """ comments"""
    if hours <= 40:
        return hours * hourlyWage
    else:
        return (hours - 40) * (3/2) * hourlyWage + 40 * hourlyWage

def sleep_in(weekday, vacation):
    if vacation:
        return True
    if weekday:
        return False
    else:
        return True