1 template<class T> void read(T&num) { 2     char CH; bool F=false; 3     for(CH=getchar();CH<‘0‘||CH>‘9‘;F= CH==‘-‘,CH=getchar()); 4     for(num=0;CH>=‘0‘&&CH<=‘9‘;num=num*10+CH-‘0‘,CH=getchar()); 5     F && (num=-num); 6 } 7 int stk[70], tp; 8 template<class T> inline void print(T p) { 9     if(!p) { puts("0"); return; }10     while(p) stk[++ tp] = p%10, p/=10;11     while(tp) putchar(stk[tp--] + ‘0‘);12     putchar(‘\n‘);13 }