$1.$

Design problem solution by creating PAC, IPO, Algorithm and Flowchart for a program that mimics a calculator. The program should take two integers as input and the operation to be performed. It should then output the numbers, the operator, and the result. Some sample outputs as below:

Sample output EnEnter first integer: $44$ EnEnter second integer: $20$ EnEnter operator $(+,-,*)$: $+$

$4444+20=64$ EnEnter first integer: $32$ EnEnter second integer: $12$ EnEnter operator $(+,-,*)$: $-$

$323212=20$ EnEnter first integer: $10$ EnEnter second integer: $7$ EnEnter operator $(+,-,*)$: $*$

$1010*7=70$