program massiv;
uses crt;
var
i,j,m,n:byte;
k,x:integer;
a:array[1..100,1..100] of byte;
begin
clrscr;
randomize;
write('n=');readln(n);
write('m=');readln(m);
for i:=1 to n do
for j:=1 to m do
a[i,j]:=random(2);
writeln('Massiv');
for i:=1 to n do
begin
for j:=1 to m do
write(a[i,j]:3);
writeln;
end;
x:=0;
{Po strokam}
for i:=1 to n do
begin
k:=0;
for j:=1 to m do
begin
if a[i,j]=0 then k:=k+1;
if (a[i,j]=1) or (j=m) then
begin
if k>x then x:=k;
k:=0;
end;
end;
end;
writeln('Samaya dlinnaya cepochka podryad stoyashih 0 po goriz=',x);
{po stolbcam}
x:=0;
for j:=1 to m do
begin
k:=0;
for i:=1 to n do
begin
if a[i,j]=0 then k:=k+1;
if (a[i,j]=1) or (i=n) then
begin
if k>x then x:=k;
k:=0;
end;
end;
end;
writeln('Samaya dlinnaya cepochka podryad stoyashih 0 po vertikali=',x);
{po glavnoy diag}
k:=0;x:=0;
if n>m then n:=m;
for i:=1 to n do
begin
if a[i,i]=0 then k:=k+1;
if (a[i,i]=1) or (i=n) then
begin
if k>x then x:=k;
k:=0;
end;
end;
writeln('Samaya dlinnaya cepochka podryad stoyashih 0 po glavnoy diag=',x);
{Po pobochnoy}
k:=0; x:=0;
if m<n then n:=m;
for i:=1 to n do
begin
if a[i,m-i+1]=0 then k:=k+1;
if (a[i,m-i+1]=1) or (i=n) then
begin
if k>x then x:=k;
k:=0;
end;
end;
writeln('Samaya dlinnaya cepochka podryad stoyashih 0 po pobochnoy diag=',x);
readln
end.