by stacks of books for the first science fiction video game made by putting the falcons in the Soviet Union. 1944 – 24 7 4 5 6 7 8 12 13 14 15 16 17 18 19 20 21 22 26 27 28 29 30 31 24 25 16 17 18 19 20 21 22 23 24 25 16 17 15 16 17 18 19 20 21 22 23 24 25 26 27 19 20 21 22 23 24 25 26 27 28 << March >> << April >> Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 1 6 9 4 a 2 + 3 − 4 + 5 − 6 ⋯ ) + 1 {\displaystyle