#include <stdio.h>

int main(void) {
int a,b,i,iti,ju;
scanf("%d %d",&a,&b);
for(i=a;i<=b;i++){
ju=i/10;
iti=i-ju*10;
if(i%3==0||ju==3||iti==3)printf("%d\n",i);
}

	return 0;
}