更加优秀的快读快输

template<typename T>inline void read(T &x){
    x=0;int f=1;char c=getchar();
    while(!isdigit(c)){if(c=='-')f=-f;c=getchar();}
    while (isdigit(c)){x=x*10+(c-48);c=getchar();}
    x*=f;
}
template<typename T,typename...Args>inline void read(T &x,Args&...y){read(x),read(y...);}
template<typename T>inline void write(T x,char ch=' '){
	stack<char>st;
	if(x<0)putchar('-'),x=-x;
	if(x==0)putchar('0');
	while(x)st.push(x%10+'0'),x/=10;
	while(!st.empty())putchar(st.top()),st.pop();
    putchar(ch);
}
template<typename...Args>inline void write(char ch,Args...y){write(y...,ch);}