Within one week from the start of Operation Barbarossa, Heydrich issued an order to his Einsatzkommandos for the on-the-spot execution of all Bolsheviks, interpreted by the SS to mean all Jews. One of the first indiscriminate massacres of men, women, and children in Reichskommissariat Ukraine took the lives of over 4,000 Polish Jews in Łuck Ghetto on 2-4 July 1941, murdered by Einsatzkommando 4a assisted by the Ukrainian Peoples Militia. Formed officially on 20 August 1941, the Reichskommissariat Ukraine - stretching from prewar east-central Poland to Crimea - had become operational theatre of the Einsatzgruppe C. Within the Soviet Union proper, between 9 July 1941 and 19 September 1941 the city of Zhytomyr was made Judenfrei in three murder operations conducted by German and Ukrainian police in which 10,000 Jews perished. In the Kamianets-Podilskyi massacre of 26-28 August 1941 some 23,600 Jews were shot in front of open pits (including 14,000-18,000 people expelled from Hungary). After an 1941 Bila Tserkva massacre in which 90 small children left behind had to be shot separately, Paul Blobel requested that Jewish mothers hold them in their arms during mass shootings. Long before the conference at Wannsee, 28,000 Jews were shot by SS and Ukrainian military in Vinnytsia on 22 September 1941, followed by the 29 September massacre of 33,771 Jews at Babi Yar. In Dnipropetrovsk, on 13 October 1941 some 10,000-15,000 Jews were shot. In Chernihiv, 10,000 Jews were put to death and only 260 Jews were spared. In mid-October, during the Kryvyi Rih massacre of 4,000-5,000 Soviet Jews the entire Ukrainian Auxiliary Police force actively participated. In the first days of January 1942 in Kharkiv, 12,000 Jews were murdered, but smaller massacres continued in this period on daily basis in countless other locations. In August 1942 in the presence of only a few German SS men over 5,000 Jews were massacred in Polish Zofjówka by the Ukrainian Auxiliary Police leading to the towns complete sweep from existence.
Question: How many Jews in total were killed in October 1941?
Answer: 25000; 30000