program sdfs;
 var n,m,l,i,f,d:integer;
begin
read(n,m,l);
f := 0;
if (l > m) and (l > n) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if l > 0 then begin l := l - 1; write(3); end;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
 end;
 for i := 1 to n do begin
  write(1);
 end;
end;
if (m > l) and (m > n) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
  if l > 0 then begin l := l - 1; write(3); end;
 end;
end;
if (n > l) and (n > m) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
  if l > 0 then begin l := l - 1; write(3); end;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
 end;
 for i := 1 to n do begin
 write(1);
 end;
end;
if (n < l) and (l = m) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if l > 0 then begin l := l - 1; write(3); end;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
 end;
end;
if (n = l) and (l > m) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
  if l > 0 then begin l := l - 1; write(3); end;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
 end;
 for i := 1 to n do begin
 write(1);
 end;
end;
if (n = m) and (l < m) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
  if l > 0 then begin l := l - 1; write(3); end;
 end;
 for i := 1 to n do begin
 write(1);
 end;
end;
if (n = m) and (l = m) and (f = 0) then begin
 f := 1;
 d := 0;
 while d = 0 do begin
  if n > 0 then begin n := n - 1; write(1); end else d := 1;
  if m > 0 then begin m := m - 1; write(2); end else if (m = 0) and (l > 0) then d := 1;
  if l > 0 then begin l := l - 1; write(3); end;
 end;
 for i := 1 to n do begin
 write(1);
 end;
end;
end.