var
inputStr:string;
i:byte;
c: Char;
allset, tempset, duoset: set of '0'..'9';
begin
allset := [];
tempset := [];
duoset := [];
readln(inputStr);
inputStr := inputStr +' ';
for i:= 1 to length(inputStr) do
begin
if ( inputStr[i] in ['0'..'9'] ) then
tempset := tempset + [inputStr[i]]
else
begin
duoset := duoset + allset * tempset;
allset := allset + tempset;
tempset := [];
end;
end;
for c := '0' to '9' do
if c in duoset then
writeln('ΠΠΎΠ²ΡΠΎΡΡΠ΅ΡΡΡ: ', c);
end.