#include <stdio.h>
 #include <ctype.h>
 #include <malloc.h>
 #define lim 102

int main()
  {
      int i,p;
      scanf("%d\n",&p);
      if (p>lim) return 0;
      if (p<0) return 0;
      if(p == 0) return 0;
      if (isalpha(p)) return 0;

      char c;

      char* A =(char*)malloc(p*sizeof(char));

      i = 0;
      while (i < p-1) {
          c = getchar();
          if (c == EOF)
              break;
          if (c == '\n')
              break;
          if(isdigit(c)){
          c = c -'0';
          c = 9 - c;
          c = c + '0';
          }
          A[i++] = c;
      }
      A[i] = '\0';

      printf("%s", A);

      return 0;
  }