RT

//100pts(?)
#include<iostream>
#include<iomanip>
using namespace std;
const int N=3e3+5;
string a[N],b[N];
int zg[N],zd[N];
int wz[N],ans[N],wz1[N];
int n,m;
bool check(int t)
{
	for(int i=1;i<=n;i++){
		if(a[t]>a[i]){
			return 0;
		}
	}
	return 1;
}
int main()
{
	//freopen("dict.in","r",stdin);
//	freopen("dict.out","w",stdout);
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		zd[i]=200;
	}
	for(int i=1;i<=n;i++){
		cin>>a[i];
		for(int j=0;j<=m-1;j++){
			if(zg[i]<a[i][j]){
				zg[i]=a[i][j];
				wz[i]=j;
			}
			if(zd[i]>=a[i][j]){
				zd[i]=a[i][j];
				wz1[i]=j;
			}
		}
	}
	for(int i=1;i<=n;i++){
		swap(a[i][0],a[i][wz1[i]]);
		for(int j=1;j<=n;j++){
			if(j!=i){
				swap(a[j][0],a[j][wz[j]]);
			}
		}
		if(check(i))ans[i]=1;
		swap(a[i][0],a[i][wz1[i]]);
		for(int j=1;j<=n;j++){
			if(j!=i){
				swap(a[j][0],a[j][wz[j]]);
			}
		}
	}
	for(int i=1;i<=n;i++)cout<<ans[i];
	return 0;
}