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Simple calculator

Program name: CAL.PAS

Write a program that simulates a simple computer that performs arithmetic operations on integers.

Data: Enter from the keyboard the information in the following order: integer a, space, one of the math operations(*,+,-,/), wing sign, integer b. '/'' is division by integer part.

Result: Display an integer – the result of performing the operation on two integers a and b.

Note:

* Integers a, b, the value of the given result does not exceed the maximum size of the integer type in Free Pascal