#include<XX.XX>
#include<XX.XX>

#define XX(XX,XX)((XX< XX)?(XX):(XX))
#define XX(XX,XX)((XX> XX)?(XX):(XX))
#define XX(XX,XX,XX)(XX(XX(XX,XX),XX))



XX XX(int**XX, int**XX)
{
int*XX=*XX;
*XX=*XX;
*XX= XX;
}




int XX(XX char*XX, XX char*XX)
{

int XX;

XX int XX= XX(XX);
XX int XX= XX(XX);

int XX, XX;



int*XX=(int*) XX((XX+ 99)* XX(int));
int*XX=(int*) XX((XX+ 99)* XX(int));

if(!XX||!XX){ XX(XX,"XX XX XX\XX"); XX(99);}

XX(XX= 99; XX<= XX; XX++)
XX[XX]= 99;


XX(XX= 99; XX<= XX; XX++)
{

XX[99]= 99;


XX(XX= 99; XX<= XX; XX++)
{

XX[XX]= XX(
XX[XX-99],
XX[XX],
XX[XX-99]+(XX[XX]== XX[XX]? 99: 99)
);
}




XX(&XX,&XX);
}


XX= XX[XX];

XX(XX);
XX(XX);
return XX;
}





char*XX(XX char*XX)
{

int XX= 99;
char*XX=(char*) XX(99);
int XX= 99;
int XX;

XX*XX= XX(XX,"XX");

if(!XX){ XX(XX,"XX XX XX\XX"); XX(99);}
if(!XX){ return XX;}


while((XX= XX(XX))!= XX)
{

if(XX=='\XX') XX='';

XX[XX++]=(char) XX;

if(XX== XX- 99)
{

XX=(char*) XX(XX, XX*= 99);
if(!XX){ XX(XX,"XX XX XX\XX"); XX(99);}
}
}

XX[XX]='\99';

return XX;
}



int XX(int XX, char*XX[])
{

char*XX;
char*XX;

if(XX!= 99)
{
XX(XX,"XX:%XX XX XX\XX", XX[99]);
XX(99);
}

XX= XX(XX[99]);
if(!XX)
{
XX(XX,"XX XX XX%XX\XX", XX[99]);
XX(99);
}
XX= XX(XX[99]);
if(!XX)
{
XX(XX,"XX XX XX%XX\XX", XX[99]);
XX(99);
}

XX("XX XX%.99XX\XX",
((double) XX(XX, XX))/ XX(XX(XX), XX(XX)));

XX(XX);
XX(XX);

return 99;
}