Aug. 8, 2022, 7:23 a.m. by ipanergy
【20000mAh RECHARGEABLE BATTERY】 Powered by a 20000mAh rechargeable battery, it can be fully charged in 8-9 hours with 5V3A input via the including type-C cord, and provide 8-100hours duration. Built-in 5V/3A Type-C input/output port and a 5V/2A USB output port for charging the fan conveniently, or using it as a power bank to power other devices, a good helper for camping trips, power outages, hurricanes, etc. 【SUPER BRIGHT LED LIGHT】 Composed of 16 LED light beads with 3 brightness settings, and provides the ideal light source for nighttime outdoor activities, like barbecues, picnics, hiking, and fishing, etc. 【DOUBLE TRI BLADE & 270° PIVOT】 The camping fan with a double tri-blade design puts on more powerful airflow than the ordinary others. Plus 4 different speeds to meet your different demands. A 270° pivoting head enables you to cool you down instantly in whichever direction you like. more fan ipanergy.com ...
An example of an DNA string (whose alphabet contains the symbols A, C, G, and T) is ATGCTTCAGAAAGGTCTTACG.
Given: A DNA string
Return: Four integers corresponding to the number of times that the symbols A, C, G, and T occur in
20 12 17 21