#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Yukicoder №123 カードシャッフル
// https://yukicoder.me/problems/no/123
// ***********************
// for debug
#define DEBUG

#define NOP do{}while(0)
#ifdef DEBUG
#define TRACE(...) do{printf(__VA_ARGS__);fflush(stdout);}while(0)
#define TRACECR do{printf("\n");fflush(stdout);}while(0)
#else
#define TRACE(...) NOP
#define TRACECR NOP
#endif

#define PRINCR printf("\n")
#define NOCR(strig) do{char *p;p=strchr(strig,'\n');if(p)*p='\0';}while(0)
// The out-of-date function
#define	asctime(...)	asctime_s(...)
#define	ctime(...)		ctime_s(...)
#define	strlen(a)	mystr_len(a)

// for stdio
#define	GETLINE	INPUT
#define INPUT(str) do{char *p;fgets(str,sizeof(str),stdin);p=strchr(str,'\n');if(p)*p='\0';}while(0)
#define REP(a,b) for(int a=0;a<(int)(b);++a)
#define lolong long long
#define INPBUF (250+2)
static char *GETWORD(char* str) {char c;char *cp;cp=&str[0];c=fgetc(stdin);while( c != EOF ){if((c==' ')||( c=='\n')) break;*cp++=c;c=fgetc(stdin);}*cp='\0';return &str[0];}
#define	GETINTS(a,b) {char s[257];int *ap=a;REP(i,b){GETWORD(s);sscanf(s,"%d", ap);ap++;}}
#define GETLONGS(a,b) {char s[257];long *ap=a;REP(i,b){GETWORD(s);sscanf(s,"%ld", ap);ap++;}}
// ***********************
// ***********************
// 外部変数
// ***********************
int main() {
	char	str[51];
	int		i = 1;
	
	printf("000\n");fflush(stdin);

	GETLINE(str);
	while(str[0] != 'u' ) {
		printf("%03d\n",i++);
		fflush(stdin);
		GETLINE(str);
	}
	return 0;
}