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!