Variable and print in Python

#1st Code
msg = "Kapil Shukla"
nm = 10
ch = 'A'
print(msg,",",nm,",",ch)

output:
Kapil Shukla , 10 , A

#2nd Code
msg1 = "kapil"
msg2 = 'shukla'
i, j =10, 20
print(msg1 + msg2,"\n", i + j)

output:
kapilshukla 30

#3rd Code
msg = "Hello" i = 5 print((msg + " ") * i)

output:
Hello Hello Hello Hello Hello

#4th Code
msg = "Hello" i = 5 print(msg,"\b",i)

output:
Hello 5