a = [ 4, 5, 6 ]
b = [ 7, 8, 9 ]
[1, 2, 3].zip(a, b)   #=> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
[1, 2].zip(a, b)      #=> [[1, 4, 7], [2, 5, 8]]
a.zip([1, 2], [8])    #=> [[4, 1, 8], [5, 2, nil], [6, nil, nil]]

name = [ "Manjeet", "Nikhil", "Shambhavi", "Astha" ]
roll_no = [ 4, 1, 3, 2 ]
marks = [ 40, 50, 60, 70 ]

# using zip() to map values
mapped = zip(name, roll_no, marks)

# converting values to print as set
mapped = set(mapped)

# printing resultant values
print ("The zipped result is : ",end="")
print (mapped)
# {('Nikhil', 1, 50), ('Astha', 2, 70), ('Manjeet', 4, 40), ('Shambhavi', 3, 60)}