Employee data storing

Question:
 
Employee data storing using python and view data using ID, and ID is generated on runtime.

Input Data:
First Name, Last Name, DOB.

this program stores the data on runtime only using list to store the data. 

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Program:

x=0
ll=[]
while x==0:
    print("1.ADD\n2.VIEW\n3.EXIT")
    n=int(input("Enter Choice:"))
    e=[]
    if n==1:
        f=input("First Name:")
        e.append(f)
        l=input("Last Name:")
        e.append(l)
        d=input("DD-MM-YYYY:")
        e.append(d)
        i=f+l[0]+d[6:]
        e.append(i)
        ll.append(e)
    elif n==2:
        eid=input("Enter Employee ID:")
        for j in range(0,len(ll)):
                if(ll[j][3] == eid):
                    print("First Name:"+ll[j][0] +"\nLast Name:"+ll[j][1]+ "\nDOB:"+ll[j][2]+ "\nid:"+ll[j][3])

    elif n==3:
        x=1   
     

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this program stores the data in the text file .

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Program:

x=0 #initialize
fi=open('employee.txt','a') #creating the file employee.txt and opening in append mode
ll=[] #list initialize
while x==0: #loop
    print("1.ADD\n2.VIEW\n3.EXIT")
    n=int(input("Enter Choice:"))
    e=[] #list initialize
    if n==1:
        fi.write('----------------------------------------------\n')
        f=input("First Name:")
        fi.write('First Name:'+f) # write firstname in file
        e.append(f) #add firstname in list
        l=input("Last Name:")
        e.append(l)#add lastname in list
        fi.write('\nLast Name:'+l)# write lastname in file
        d=input("DD-MM-YYYY:")
        e.append(d)#add date in list
        fi.write('\nDOB:'+d)# write DOB in file
        i=f+l[0]+d[6:]# ID generation
        e.append(i)#add ID in list
        fi.write('\nID:'+i)# write ID in file
        ll.append(e)
        ff.close()  
    elif n==2:
        eid=input("Enter Employee ID:") #employee ID for retrive data
        for j in range(len(ll)):
                if(ll[j][3] == eid):
                    print("First Name:"+ll[j][0] +"\nLast Name:"+ll[j][1]+ "\nDOB:"+ll[j][2]+ "\nid:"+ll[j][3])

    elif n==3:
        x=1   
      

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