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#include<stdio.h>
#include<string.h>
//int common(char*,char*,char*,int,int);
int main()
{
char str1[1000],str2[1000],str3[1000],j,k=0,i,l3;
int l1,l2;
printf("enter the first string\n");
gets(str1);
printf("enter another string\n");
gets(str2);
l1 = strlen(str1);
l2 = strlen(str2);
if(l1 >=l2)
{
for (j=0;j<l1;j++)
{
for(i=0;i<l2;i++)
{
if(str1[j] == str2[i])
{
str3[k] = str2[i];
str2[i] = '-';
k++;
}
}
}
}
else
{
for(j=0;j<l2;j++)
{
for(i=0;i<l1;i++)
{
if(str2[j]==str1[i])
{
str3[k] = str1[i];
str1[i] = '-';
k++;
}
}
}
}
str3[k]='\0';
i=0;
while(str3[i]!='\0')
{
printf("%c",str3[i]);
i++;
}
return 0;
}