# include <stdio.h>
void myToUpper(char s[]){
int i;
for(i=0;s[i] != '\0';i++){
if(s[i]=='1'){
s[i] ='I';
}
}
return;
}
int main(){
char s[100];
myToUpper(s);
return 0;
}
IyBpbmNsdWRlIDxzdGRpby5oPgoKdm9pZCBteVRvVXBwZXIoY2hhciBzW10pewogICAgaW50IGk7CiAgICBmb3IoaT0wO3NbaV0gIT0gJ1wwJztpKyspewogICAgICAgIGlmKHNbaV09PScxJyl7CiAgICAgICAgICAgIHNbaV0gPSdJJzsKICAgICAgICB9CiAgICB9CiAgICByZXR1cm47Cn0KCmludCBtYWluKCl7CiAgICBjaGFyIHNbMTAwXTsKICAgIHNjYW5mKCIlcyIscyk7CiAgICBwcmludGYoIiVzIC0+ICIscyk7CiAgICBteVRvVXBwZXIocyk7CiAgICBwcmludGYoIiVzXG4iLHMpOwogICAgcmV0dXJuIDA7Cn0K