Codeforces 118A String Task in C

Hi! I'm Sujan Mridha, the solution of 118A String Task is given below:

1. #include<stdio.h>
2. int main()
3. {
4. int l,i;
5. char a[200];
6. scanf("%s",&a);
7. l=strlen(a);
8. for (i=0; i<l; i++)
9. {
10. if (a[i]>='A' && a[i]<='Z') a[i]=a[i]+32;
11. if (a[i]!='a' && a[i]!='A' && a[i]!='E' && a[i]!='e' && a[i]!='I' && a[i]!='i' && a[i]!='o' && a[i]!='O' && a[i]!='U' && a[i]!='u' && a[i]!='y' && a[i]!='Y') printf(".%c",a[i]);
12. }
13. printf("\n");
14. return 0;
15. }