import csv
def add():
    f1=open("data.csv","w",newline="\n")
    a=csv.writer(f1)
    L=[]
    for i in range(0,5,1):
        name=input("enter your name")
        rollno=int(input("enter your roll no."))
        marks=int(input("enter your marks"))
        L=[name,rollno,marks]
        a.writerow(L)
    f1.close()

def show():
    f=open("data.csv","r")
    a=csv.reader(f)
    print("students who have scored more than 90 marks are:")
    for i in a:
        print(i)
    f.close()
def search90():
    f=open("data.csv","r")
    a=csv.reader(f)
    print("students who have scored more than 90 marks are:")
    for i in a:
        if int(i[2])>90:
            print(i[0])
    f.close()
while True:
 print('''
1. Add
2. Display all
3. search above 90
4. Exit
''')
 ch=int(input("Enter your choice:"))
 if ch==1:
 	add()
 elif ch==2:
 	show()
 elif ch==3:
                search90()
 elif ch==4:
 	break
 else:
     print("Invalid Choice")

'''
output
1. Add
2. Display all
3. search above 90
4. Exit

Enter your choice:1
enter your nameewew
enter your roll no.2
enter your marks67
enter your nameyuyu
enter your roll no.3
enter your marks98
enter your nameeee
enter your roll no.5
enter your marks76
enter your nameyyy
enter your roll no.132
enter your marks93
enter your nameaaa
enter your roll no.66
enter your marks84

1. Add
2. Display all
3. search above 90
4. Exit

Enter your choice:2
students who have scored more than 90 marks are:
['ewew', '2', '67']
['yuyu', '3', '98']
['eee', '5', '76']
['yyy', '132', '93']
['aaa', '66', '84']

1. Add
2. Display all
3. search above 90
4. Exit

Enter your choice:3
students who have scored more than 90 marks are:
yuyu
yyy

1. Add
2. Display all
3. search above 90
4. Exit

Enter your choice:4
'''