Calculate the area of a square given its length in cm.
12 cm
The area of a square with a side length of 12 cm is 144 square centimeters. The formula to find the area of a square is side length multiplied by itself (side_length * side_length). In this case, 12 times 12 equals 144.
Complete the following task based on the instruction and optional input provided.### Instruction:
Calculate the area of a square given its length in cm.

### Input:
12 cm

### Output:
The area of a square with a side length of 12 cm is 144 square centimeters. The formula to find the area of a square is side length multiplied by itself (side_length * side_length). In this case, 12 times 12 equals 144.