# 1 "Exam0in.txt"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "Exam0in.txt"
There are nine characters that are not ISO 646 standard

With tri-graphcs you can still say them...

but you will probably have to beg C to process them

{
  if (~i ^ 13 == 5 || x[5] > 0)
    printf("Test #27 is ok\n") ;
}