[US] As a user, I want to have a super calculator
Features: › Addition of 2 numbers (x + y) › Substraction of 2 numbers (x - y) › Multiplication of 2 numbers (x * y) › Division of 2 numbers (x / y) › Power (x ^ y) › Main menu
Features: › Addition of 2 numbers (x + y) › Substraction of 2 numbers (x - y) › Multiplication of 2 numbers (x * y) › Division of 2 numbers (x / y) › Power (x ^ y) › Main menu