/*   @JUDGE_ID:   1705PZ   272   C */
#include <stdio.h>

void main()
{
	int i,flag = 0;
	char string[128];
	while(fgets(string,100,stdin) != NULL)
	{
		for(i = 0;string[i] != 0;i++)
		{
			if(string[i] == '\"')
			{
				if(flag == 0)
					printf("``");
				else
					printf("''");
				flag = 1 - flag;
			}
			else
				printf("%c",string[i]);
		}
	}
}
@END_OF_SOURCE_CODE