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

typedef char cstring[128];

void printcaps(cstring s);

int main() {
  // read "first last"
  cstring first;
  cstring last;
  scanf(" %s %s", first, last);

  // print out "LAST, FIRST"
  printcaps(last);
  printf(", ");
  printcaps(first);
  printf("\n");

  return 0;
}


// prints the given string in all capital letters
void printcaps(cstring s) {
  for (int i=0; i < strlen(s); ++i) {
    if ('a' <= s[i] && s[i]  <= 'z') {
      printf("%c", s[i] - ('a' - 'A'));
    } else {
      printf("%c", s[i]);
    }
  }
}