
str=[]
i=1
x=[]
fo=open("book1.csv","r")
for line in fo:
    str.append(line)
print('file content',str)
print('\n')
while(len(str)-1>=i):
    x=str[i].split(",")
    print('num:',x[0])
    
    print('firstname:',x[1])
    print('mark:',x[2])
    i=i+1

fe1af59dacf6fea06abcaf04e51a1a1fcacad9e8
<mask token>

<mask token>
for line in fo:
    str.append(line)
print('file content', str)
print('\n')
while len(str) - 1 >= i:
    x = str[i].split(',')
    print('num:', x[0])
    print('firstname:', x[1])
    print('mark:', x[2])
    i = i + 1

str = []
i = 1
x = []
fo = open('book1.csv', 'r')
for line in fo:
    str.append(line)
print('file content', str)
print('\n')
while len(str) - 1 >= i:
    x = str[i].split(',')
    print('num:', x[0])
    print('firstname:', x[1])
    print('mark:', x[2])
    i = i + 1


str=[]
i=1
x=[]
fo=open("book1.csv","r")
for line in fo:
    str.append(line)
print('file content',str)
print('\n')
while(len(str)-1>=i):
    x=str[i].split(",")
    print('num:',x[0])
    
    print('firstname:',x[1])
    print('mark:',x[2])
    i=i+1
