func Square(input int) (uint64, error) {
	if input < 1 || input > 64 {
		return 0, errors.New("Input must be between 1 and 64")
	}
	return 1 << (input - 1), nil
}
// Square returns 2 raised to the power of the input minus 1
// Returns an error if the input is < 1 or > 64
Square returns 2 raised to the power of the input minus 1
Returns an error if the input is < 1 or > 64
// Square returns 2 raised to the power of the input minus 1 // Returns an error if the input is < 1 or > 64
func Square(input int) (uint64, error) {
	if input < 1 || input > 64 {
		return 0, errors.New("Input must be between 1 and 64")
	}
	return 1 << (input - 1), nil
}
func Square ( input int ) ( uint64 , error ) { if input < 1 || input > 64 { return 0 , errors . New ( " " ) } return 1 << ( input - 1 ) , nil }
Square returns 2 raised to the power of the input minus 1
Returns an error if the input is < 1 or > 64
Square returns 2 raised to the power of the input minus 1 Returns an error if the input is < 1 or > 64