text: /**/
  #include <stdio.h>
  #include <math.h>
  int main(){
  int a=0;
  char c;
  int sum; 
  printf("Enter an abitrarily long string, ending with carriage return > ");
  while (c != '\n'){
  c = getchar();
  a += (int) c;
  sum = a % 64 + 22;
  sum = (char)sum;}
  printf("Check sum is %c\n", sum);
  return 0;}
  
  //**/
  