#include <stdio.h>
#include <string.h>

int main() {
  char s[10];

  printf("Have you any problem? (yes/no)\n");
  scanf("%5s", s);
  while (strcmp(s, "yes") == 0) {
    printf("Have you a problem with electronic devices? (yes/no)\n");
    scanf("%5s", s);
    if (strcmp(s, "yes") == 0) {
      printf("Have you a problem with TV? (yes/no)\n");
      scanf("%5s", s);
      if (strcmp(s, "yes") == 0) {
        printf("You must to go to TV master\n");
      } else {
        printf("Have you a problem with computer? (yes/no)\n");
        scanf("%5s", s);
        if (strcmp(s, "yes") == 0)
          printf("You must go to sysadmin\n");
        else
          printf("I am sorry, I cannot help you.\n");
      }
    } else {
      printf("Have you a problem with teapot? (yes/no)\n");
      scanf("%5s", s);
      if (strcmp(s, "yes") == 0) {
        printf("Was you teapot broken? (yes/no)\n");
        scanf("%5s", s);
        if (strcmp(s, "yes") == 0)
          printf("You must buy our super glue\n");
        else
          printf("I am sorry, I cannot help you.\n");
      } else {
        printf("I am sorry, I cannot help you.\n");
      }
    }

    printf("Have you other problems? (yes/no)\n");
    scanf("%5s", s);
  }

  printf("Good bye\n");
  return 0;
}