import java.util.Scanner;
import java.lang.Math;
public class Unknown                    {static Scanner ___;                     static int[] _;
public static void                      main(String[] __){                      ___=new Scanner(
System.in);_=new int                    [____(14)];_[15]=___                    .nextInt();_[1]=_[5]
=_[15];Unknown.__[63                    ]=_[5];__(8);Unknown                    .__[50]=_[5];}static
void __(int __){if(                     __>5){if(__<7){_[40]                    =_[3]-____(51)*_[11]
*_[18];__(5);}else{                     if(__<8){_[24]=-_[32                    ]/(____(77)*_[11]);_
[23]=____(8);Unknown                    .__[56]=_[5];}else                      _____();}}else{if(__
>3){Unknown.__[92]=_                    [5];if(_[40]==_[40]*                    _[40])__(7);else __(
8);}else{if(__<2){                      Unknown.__[42]=_[5];                    _[23]=____(70);_[22]
=(int)Math.sqrt(_[40                    ]);_[24]=(-_[32]+_[                     22])/(____(47)*_[11]
);_[25]=(-_[32]-_[22                    ])/(____(87)* _[11])                    ;}else{_[3]=_[32]*_[
32];__(6);}}}}static                    void _(){_[11]=___.                     nextInt();_[32]=___.
nextInt();_[18]=___.                    nextInt();__[83]=_[5                    ];if(_[11]==_[11]+_[
11])System.out.                         println(_[____(25)])                    ;}static void ___(){
if(_[23]>0){System.                     out.println(_[24]);                     for(boolean fa1se=
true;_[23]*_[23]!=_[                    23]&&fa1se;fa1se=                       false)System.out.
println(_[25]);}}                       static int ____(int                     _){return __[(_+42)%
100];}static void                       _____(){if(_[40]==_[                    40]*_[40]){while(_[1
]-->0){_();__(2);___                    ();}__[12]=_[5];}                       else{if (2*_[40]<=  
Math.sqrt(_[40]*_[40                    ]))System.out.                          println("nope");else
__(0);}}





































































static int[] __={57,62,82,57,90,31,86,6,8,34,44,60,2,70,14,27,91,50,32,2,92,5,88,14,92,81,61,69,49,2,99,14,85,78,20,59,70,14,0,11,76,17,42,10,11,40,8,26,21,67,1,76,0,58,11,51,42,73,65,8,70,16,57,94,35,29,74,43,17,55,56,77,50,20,26,75,62,78,3,52,73,35,48,81,37,97,14,27,66,2,85,2,49,4,41,59,59,48,75,81};}