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  1. program ideone;
  2. var
  3. a,b:integer;
  4. c:real;
  5. begin
  6. readln(a);
  7. readln(b);
  8. c:=sqrt(sqr(a)+sqr(b));
  9. write(c);
  10.  
  11. end.
Success #stdin #stdout 0s 4444KB
stdin
3 
4
stdout
 5.0000000000000000E+000