#include<bits/stdc++.h>

const int N=15;

int read(){
	int x=0,f=1;
	char ch=getchar();
	while(!isdigit(ch)){
		if(ch=='-') f=-1;
		ch=getchar();
	}
	while(isdigit(ch)){
		x=(x<<3)+(x<<1)+(ch^48);
		ch=getchar();
	}
	return x*f;
}

using namespace std;

int n,m,p;
int chose[N];

signed main(){
	n=read();m=read();p=m;
	for(int i=1;i<=n;i+=2)
		if(p<=0) chose[i]=chose[i+1]=m;
		else chose[i]=chose[i+1]=p--;
	for(int i=1;i<=n;++i){
		for(int j=1;j<=m;++j)
			if(chose[i]==j) cout<<"1.0000000000"<<' ';
			else cout<<"0.0000000000"<<' ';
		cout<<'\n';
	}
	return 0;
}