# Sample Lab Exam 1 - Solutions 

# In your labexam1 folder in the file f1.py

def f1(list): 
    sum = 0 
    for i in range(0,len(list)): 
        if list[i]%3 == 0: 
            sum = sum + list[i] 
    return sum 


# In your labexam1 folder in the file f2.py 

def f2(list,start,finish): 
    new_list = []
    for i in range(start,finish+1): 
        if list[i]%2 == 0: 
	    new_list.append("even")
	else: 
	    new_list.append("odd")
    return new_list


# In your labexam1 folder in the file f3.py

def f3(list):
    last = None
    for i in range(0,len(list)): 
        if list[i] == "food": 
            last = i
    return last 


# In your labexam1 folder in the file f4.py

def f4(n): 
    for i in range(1,n+1): 
        for j in range(1,n+1): 
	    print(i*j, end = " ")
	print()
    return None