name1 = "John Doe"
id1 = "1121120598"
batch1 = "21st"
department1 = "CSE"

name2 = "Bon Joe"
id2 = "1121120524"
batch2 = "22nd"
department2 = "CSE"
# ... ... ...
name43 = "Brave X"
id43 = "1121120123"
batch43 = "51st"
department43 = "CSE"

for i in range(43):
    name = input()
    std_id = input()
    batch = input()
    department = input()
    # do all the stuff related to this student
    # process each student in one go

std_names, std_ids, batches, depts = [], [], [], []
for i in range(43):
    name = input()
    std_id = input()
    batch = input()
    department = input()
    std_names.append(name)
    std_ids.append(std_id)
    batfches.append(batch)
    depts.append(department)

# access first student
std_names[0], std_ids[0], batches[0], depts[0]

# adding new student in middle of the list or removing student is hazardous!

students = dict()
for i in range(43):
    name = input()
    std_id = input()
    batch = input()
    department = input()
    students[std_id] = [
         name,
         batch,
         department,
    ]
# access student name
students['1'][0]
# access student department
students['1'][2]

students = dict()
for i in range(43):
    name = input()
    std_id = input()
    batch = input()
    department = input()
    students[std_id] = {
         "name": name,
         "batch": batch,
         "department": department
    }
# access student name
students['1']['name']
# access student department
students['1']['department']