Help me in solving PYPRACREARR1 problem

My issue

could you please explain 1 line of code??

Learning course: Practice Python
Problem Link: Rearrange Code Practice Problem in Python

@cute_fame_39
the first line say to have taken a and b as input then second line says to have calculated their sum and stored it in variable c and then last line will print the variable c that stores the sum of a and b.

a, b = map(int, input().split()) 
c = a + b
print(c)