int main()
{
int len,i;
int a[60];
char s[500];
scanf("%s",&s);
for (i=0;i<=60;i++) a[i]=0;
for (i=0;i<=strlen(s);i++)
  {
   if ((s[i]>='A') && ( s[i]<='Z')) a[s[i]-'A']++;
   if ((s[i]>='a') && ( s[i]<='z')) a[s[i]-'a'+30]++;
   }
len=0;
for (i=0;i<=60;i++) { len+=a[i];
//printf("%d\n",a[i]);
}
//printf("%d",len);
for (i=0;i<=25;i++) if (a[i]>0) printf("%c=%d\n",i+'A',a[i]);
for (i=0;i<=25;i++) if (a[i+30]>0) printf("%c=%d\n",i+'a',a[i+30]);
if (len==0) printf("No"); 
//scanf("%d",&i);
}
