#include
using namespace std;
int main()
{
int a,b,N=0,d=0;
int i;
int j;
char s[4000][4000] = {0};
char c[40000];
cin>>a>>b;
for(i=0;i {
for(j=0;j {
cin>>s[i][j];
}
}
cout<<"a ,b"<
{
for(j = 0;j {
cout< }
cout<
for( j=0;j {
for(i=0;i {
if(i==a-1)
{
if(s[i][j]==1)
{
c[d]=N,d+=1;
N=0;
}
if(s[i][j]==0)
{
c[d]=N+1,d+=1;
N=0;
}
}
if(i!=a-1)
{
if(s[i][j]==1)
{
c[d]=N,d+=1;
N=0;
}
if(s[i][j]==0)
N+=1;
}
}
}
int e=1,f=0;
for(int z=0;z<200;z++)
{
for(int i=0;i
if(c[i]==e)
f+=1;
}
if(f!=0)
cout<
}
return 0;
}