/*
#include <stdio.h>
int main()
{
char str;
scanf("%c", &str);
printf("%c", str);
return 0;
}
*/
/*
#include <stdio.h>
int main ()
{
char str [101];
int s=0,i;
gets(str);
for (i=0; str[i]!=NULL; i++)
{
if (str[i]=='l'&&str[i+1]=='o'&&str[i+2]=='v'&&str[i+3]=='e')
{
s++;
}
}
printf("%d",s);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
char str[50];
gets (str);
if (str[0]=='I'&&str[1]=='O'&&str[2]=='I'&&str[3]==NULL)
{
printf("IOI is the International Olympiad in Informatics.");
}
else
{
printf("I don't care.");
}
return 0;
}
*/
#include <stdio.h>
int main()
{
char str[51];
int i,h;
gets (str);
for (i=0;str [i]!=0;i++)
{
if (str[i]=='(')
{
printf("")
}
}
}