Write a complete program that

declares an integer variable

reads a value from the keyboard into that variable, and

writes to standard output the square of the variable's value

Besides the number, nothing else should be written to standard output Note that, in this context, \"read\" means input and \"write\" means output. To see how to calculate the square of a number, see the lecture slide packet named \"Constants Lesson, \" slide #8, and the lecture slide packet titled \"Arithmetic Expressions Lesson #1, \" slides 8-9. To see how to output the value of an arithmetic expression, see the lecture slide packet titled \"Arithmetic Expressions Lesson #2, \" slide 21.