TASK :

YOU ARE AN OWNER OF A SARI-SARI STORE AND YOU'VE NOTICED THAT THERE IS NO CALCULATOR TO BE USED. CREATE A SIMPLE CALCULATOR PROGRAM. THE PROGRAM MUST ASK THE USER TO INPUT HIS/HER NAME AND ALSO ENABLE THEM TO SELECT WHICH OPERATION TO CONDUCT (1 - ADDITION, 2 - SUBTRACTION, 3 - MULTIPLICATION, 4 - DIVISION, 5 - EXPONENT, 0 - EXIT). IF THE USER SELECTS ZERO (0), THE PROGRAM WILL DISPLAY "EXIT!". HOWEVER, IF THE USER SELECTS ANY NUMBER NOT INCLUDED IN THE OPTIONS, THE PROGRAM WILL DISPLAY "INVALID INPUT!". THE ANSWER MUST INCLUDE THE NAME OF THE USER.