/*
#include<stdio.h>
#include<string.h>
int main() {
char words[100]="hello hell world";
char receive[100]={0};
int i, k;
// strstr
scanf("%s", receive);
k = strlen(words);
for(i=0; i<strlen(words); i++) {
printf("%c : Address(%p)\n", words[i], &words[i]);
}
if(strstr(words, receive)) {
printf("INVITE ");
printf("%p\n\n", strstr(words, receive));
}
strcpy(words, "BYE");
words[3] = '-';
printf("%s\n", words);
for(i=0; i<k; i++) {
printf("%c(%d) : Address(%p)\n", words[i],words[i], &words[i]);
}
}
*/
/*
#include <stdio.h>
#include <string.h>
int main()
{
char s[102];
int i;
gets(s);
for (i=0; i<strlen(s); i++){
if(s[i]==' '){
}
else {
printf("%c",s[i]);
}
}
}
*/
/*
#include <stdio.h>
#include <string.h>
int main()
{
int i,a=0,b=0;
char s[103];
scanf("%s",s);
for (i=0; i<strlen(s); i++){
if (s[i]=='c'||s[i]=='C'){
a++;
}
if (s[i]=='c'&&s[i+1]=='C'||s[i]=='C'&&s[i+1]=='c'||s[i]=='c'&&s[i+1]=='c'||s[i]=='C'&&s[i+1]=='C'){
b++;
}
}
printf("%d\n",a);
printf("%d",b);
}
*/
/*
#include <stdio.h>
#include <string.h>
int main()
{
int i;
char s[13];
scanf("%s",s);
for (i=0; i<strlen(s); i++){
if(s[i]=='t'){
printf("%d ",i+1);
}
}
}
*/
#include <stdio.h>
#include <string.h>
int main()
{
int i,j=0,k=0;
char c[103];
scanf("%s",c);
for (i=0; i<strlen(c); i++){
if(c[0]=='I'&&c[1]=='O'&&c[2]=='I'&&strlen(c)==3){
j++;
}
else {
k++;
}
}
if(j>0){
printf("IOI is the International Olympiad in Informatics.");
}
else if(k>0){
printf("I don't care.");
}
}