#include<stdio.h>
#include<string.h>
void main()
{
char ch[50],str1="tseccodecell@gmail.com",str2="code@tsec.com",str3="tsec@gmail.com",str4="tsec@tseccodecell.com",str5="tseccode@gmail.com",str6="codecell@gmail.com",str7="tse.c@tseccodecell.com",str8="code@tsec+code.com";
int i=0,c=0,k;
char temp1=".",temp2="+";
printf("Enter the string");
gets(ch);
while(ch[i]!='\0')
{
c++;
i++;
}
for(i=0;i<c;i++)
{
if(ch[i]==temp1)
{
    continue;
}
else if(ch[i]==temp2)
    break;
else
{
    scanf("%c",&ch[i]);
    }
}
if (ch==str1||ch==str2||ch==str3||ch==str4||ch==str4||ch==str5||ch==str5||ch==str6||ch==str7||ch==str8)
{
    printf("%s is not a unique email id",ch);
    }
else
{
    k++;
}
printf("Number of unique email ids are %d",k+6);
}