$ ./main
 -------- real --------
   3.14159265358979
  3.141593
3.141593
  0.31E+01
0.314E+001
 -------- integer --------
           2
2
   2
  002
 -------- character --------
character
 abcdef
abcdef
abc
 -------- space and copy --------
 abcdef i:2, pi:   3.142 i:4, pi:   6.283
 -------- use character variable --------
abcdef 2   3.14159265
abcdef 2   3.14159265