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

void main(void){
	char *ans = "yukicoder";
	char str[10] = "test";
	scanf("%s",str);
	for(int i = 0; i < (int)strlen(str); i++ ){
		if(str[i] == '?'){
			printf("%c",*(ans+i));
		}
	}
}