#include<ctime>
void dfs(){
if(1000*(clock()-t)>=980*CLOCKS_PER_SECOND){ //clock()-t<980
output solution;
exit(0);
}
}
int main(){
t=clock();
dfs();
}
#include<ctime>
void dfs(){
if(1000*(clock()-t)>=980*CLOCKS_PER_SECOND){ //clock()-t<980
output solution;
exit(0);
}
}
int main(){
t=clock();
dfs();
}