#include<bits/stdc++.h>
using namespace std;
#define int long long
#define debug() puts("I WILL AK")
#define N 100007
inline int rd(){
	int ans=0,w=0;
	char ch=getchar();
	while (ch<'0'||ch>'9'){
		w|=ch=='-',ch=getchar();
	}
	while(ch>='0'&&ch<='9'){
		ans=(ans<<3)+(ans<<1)+(ch^48),ch=getchar();
	}
	return w?-ans:ans;
}
inline void wr(int x){
	if(x<0)
		putchar('-'),x=-x;
	if(x<=9){
		putchar(x+'0');
		return;
	}
	wr(x/10);
	putchar(x%10+'0');
}
void out(int a,int b){
	wr(a),putchar(' '),wr(b);
}
signed main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	out(rd(),rd());
	return 0;
}

输入 1 2

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