The following shows the precedence of all intrinsic and defined
  operators:

  Category    Operator                     Precedence
  ---------------------------------------------------
  N/A         Defined Unary Operators      Highest
  Numeric     **                              .
  Numeric     * or /                          .
  Numeric     Unary + or -                    .
  Numeric     Binary + or -                   .
  Character   //                              .
  Relational  .EQ.,.NE.,.LT.,.LE.,.GT.,.GE.   .
  Logical     .NOT.                           .
  Logical     .AND.                           .
  Logical     .OR.                            .
  Logical     .XOR., .EQV., .NEQV.            .
  N/A         Defined Binary Operators     Lowest