var n,m,h:integer;
begin
readln (n);
readln (m);
readln (h);
if m mod (h div n)=0 then write (m div (h div n))
else write (m div (h div n)+1)
end.
var n,m,h:integer;
begin
readln (n);
readln (m);
readln (h);
if m mod (h div n)=0 then write (m div (h div n))
else write (m div (h div n)+1)
end.