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#include <stdio.h>

int main()
{
	char s[100],t[100];
	char c;
	c=getchar();
	int i,j;
	i=0;
	j=0;
	while (c!='\n')
	{
		s[i]=c;
		i++;
		c=getchar();

	}

	c=getchar();
	while(c!='\n')
	{
		t[j]=c;
		j++;
		c=getchar();
	}

	int k,l;
	for (k=0;k<j;k++)
	{
		for (l=0;l<i;l++)
		{
			if (t[k]==s[l])
			{
				putchar(t[k]);
				break;
			}
		}
	}
	return 0;
}