var i,k: integer;
begin
k:=0;
for i:=100 to 999 do
if (i mod 3=0)and(i mod 5=0)and(i mod 7=0) then k:=k+1;
writeln(k);
end.
var i,k: integer;
begin
k:=0;
for i:=100 to 999 do
if (i mod 3=0)and(i mod 5=0)and(i mod 7=0) then k:=k+1;
writeln(k);
end.