#include <stdio.h>
#define STR_SIZE 256
#define UPPER 'A' - 'a'
char * toupper(char * str);

int main()
{
  char str[STR_SIZE];
  gets(str);
  printf("%s\n", toupper(str));
  return 0;
}

char * toupper(char * str)
{
  char *ps = str;
  while(*ps) {
    if (*ps >= 'a' && *ps <= 'z')
      *ps += UPPER;
    ps++;
  }
  return str;
}