nejad, one point to mention different countries. now, we are islamic countries. if we check , how does the crescent of the holy month of ramadan take place in them? in our country, we have establishment of isthilal groups how are they doing? now, as far as we know , they also perform dissolution and announce the first of the month based on dissolution. however, what we see from the results of their investigations, and we realize that apparently this work, which is done carefully in the investigation headquarters of the supreme leader's office and uses crescent sighting experts, is the reality. that now we at the estihlal headquarters are using the best experts in iran in this field, so this work is apparently not done there, we can see this from the results of their announcements. we get it, and now they have a calendar like us. now, they have rules for extracting their calendars , but what they use as a criterion is estihlalah, but, in our opinion, many of these estihlas are actually flawed, that is, as mr. engineers said, for exam