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

void main(void){
	char *str = "yukicoder" ;
	char checkStr[100] = "a";
	scanf("%s\n",checkStr);
	for(int i = 0 ; i < (int)strlen(checkStr) ; i++ ){
		if(checkStr[i] == '?'){
			printf("%c",*(str+i));
		}
	}
}