#include <stdio.h>

int main() { char account; int password;

scanf("%c", &account);
scanf("%d", &password);

if (account == 'z' && password == 123) {
    printf("欢迎\n");
} else if (account == 'z' && password != 123) {
    printf("密码错误\n");
} else if (account != 'z' && password == 123) {
    printf("账户错误\n");
} else {
    printf("账户密码错误\n");
}

return 0;

}