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#include<stdio.h>
int main()
{
	char str1[100] , str2[100]; 
	int i , j;
	printf("enter the first string\n");
	scanf("%s" , &str2[]);
	printf("enter the second string\n");
	scanf("%s" , &str2[]);
	for(i=0;str1[i]!='\0';i++)
	  for(j=0;str2[j]!='\0';j++)
      	       {
		  if(str1[i]=str2[j])
	               printf("%c" , str1[i]);
	       }
}