Uni = []
n = int(input("Enter number of students: "))
for i in range(0,n):
    element = input()
    Uni.append(element)
print(Uni)
cricket = []
b = int(input("Enter number students who play cricket: "))
for j in range(0,b):
    ele=input()
    cricket.append(ele)
print(cricket)
bad = []
c = int(input("Enter number students who play badminton: "))
for k in range(0,c):
    elem=input()
    bad.append(elem)
print(bad)
foot = []
d = int(input("Enter number students who play football: "))
for j in range(0,d):
    eleme=input()
    foot.append(eleme)
print(foot)

def CB():
    list3 = intersection(cricket,bad)
    print("Names of common students who play cricket and badminton: ", list3)
    print("Number of students who play cricket and badminton: ",len(list3))

def CF():
    list3 = intersection(cricket,foot)
    print("Names of common students who play cricket and football: ", list3)
    print("Number of students who play cricket and football: ",len(list3))

def BF():
    list3 = intersection(bad,foot)
    print("Names of common students who play football and badminton: ", list3)
    print("Number of students who play badminton and football: ",len(list3))

def intersection(list1,list2):
    list3=[]
    for val in list1:
        if val in list2:
            list3.append(val)
    return list3

def eCeB():
    D1=diff(cricket,bad)
    D2=diff(bad,cricket)
    # print("C-B = ",D1)
    # print("B-C = ",D2)
    DUB=union(D1,D2)
    print("People who play either cricket or badminton but not both: ",DUB)
def eCeF():
    D1=diff(cricket,foot)
    D2=diff(foot,cricket)
    # print("C-B = ",D1)
    # print("B-C = ",D2)
    DUB=union(D1,D2)
    print("People who play either cricket or football but not both: ",DUB)
def eFeB():
    D1=diff(foot,bad)
    D2=diff(bad,foot)
    # print("C-B = ",D1)
    # print("B-C = ",D2)
    DUB=union(D1,D2)
    print("People who play either football or badminton but not both: ",DUB)
def diff(list1, list2):
    list3 = []
    for val in list1:
        if val not in list2:
            list3.append(val)
    return list3
def union(list1,list2):
    list3 = list1.copy()
    for val in list2:
        if val not in list3:
            list3.append(val)
    return list3
def nCnB():
	list4 = diff(Uni,union(cricket,bad))
	print("Students who play neither cricket nor badminton: ",len(list4))
def nCnF():
	list4 = diff(Uni,union(cricket,foot))
	print("Students who play neither cricket nor football: ",len(list4))
def nFnB():
	list4 = diff(Uni,union(foot,bad))
	print("Students who play neither football nor badminton: ",len(list4))
def pCpF():
	list4 = intersection(cricket,foot)
	list5 = diff(list4,bad)
	print("People who play cricket and football but not badminton: ", len(list5))
def pCpB():
	list4 = intersection(cricket,bad)
	list5 = diff(list4,foot)
	print("People who play cricket and badminton but not football: ",len(list5))
def pBpF():
	list4 = intersection(foot,bad)
	list5 = diff(list4,cricket)
	print("People who play badminton and football but not cricket: ",len(list5))
flag = 1
while flag == 1:
	print("1. List of students who play both cricket and badminton: ")
	print("2. List of students who play either cricket or badminton but not football: ")
	print("3. Number of students who play neither cricket not badminton: ")
	print("4. Number of students who play cricket and football but not badmitnon: ")
	print("5. Exit")
	ch = int(input("Enter your choice: "))
	if(ch == 1):
		CB()
	elif(ch == 2):	
		eCeB()
	elif(ch == 3):
		nCnB()
	elif(ch == 4):
		pCpF()
	else:
		flag = 0