program Project2;

{$APPTYPE CONSOLE}

var a:string;
    n,i:integer;
begin
assign (input,'text.in');
reset(input);
assign (output,'text.out');
rewrite(output);
readln(a);
n:=length(a);
for i:=1 to n do
begin
if a[i]='a' then a[i]:='A';
if a[i]='A' then a[i]:='a';
if a[i]='b' then a[i]:='B';
if a[i]='B' then a[i]:='b';
if a[i]='c' then a[i]:='C';
if a[i]='C' then a[i]:='c';
if a[i]='d' then a[i]:='D';
if a[i]='D' then a[i]:='d';
if a[i]='o' then a[i]:='O';
if a[i]='O' then a[i]:='o';
if a[i]='s' then a[i]:='S';
if a[i]='S' then a[i]:='s';
if a[i]='h' then a[i]:='H';
if a[i]='H' then a[i]:='h';
if a[i]='l' then a[i]:='L';
if a[i]='L' then a[i]:='l';
if a[i]='p' then a[i]:='P';
if a[i]='P' then a[i]:='p';
if a[i]='u' then a[i]:='U';
if a[i]='U' then a[i]:='u';
end;
writeln(a);
close(output);
close(input);
  { TODO -oUser -cConsole Main : Insert code here }
end.