Олимпиадный тренинг

Задача 21874. How to write arithmetic expressions


Задача

Темы: Информатика
Write a program that calculates the value of the expression

\({x + y\over {x +1}}-{x\cdot y-12 \over 34 + x}\)


Input
x and y are integer variables.

Output
output a single number - the value of the expression
 
Examples
Input Output
1 1 2 1.786


Hint
Do not forget that when dividing, you need to get a real number!