var s:string;
a:array['a'..'z'] of integer;
i:integer; c:char;
begin
writeln('Введите строку:');
readln(s);
for c:='a' to 'z' do a[c]:=0;
for i:=1 to length(s) do
if (s[i]>='a')and(s[i]<='z') then a[s[i]]:=a[s[i]]+1;
for c:='a' to 'z' do
if a[c]>0 then writeln(c,' ',a[c]);
end.
