(2^15 + 3^20 - 5^12)^2
2^1 = 2
2^2 = 4
2^3 = 8
2^4 = 16
2^5 = 32
....
ciąg ostatnich liczb: 2,4,8,6
2^15 = ...8
3^1 = 3
3^2 = 9
3^3 = 27
3^4 = 81
3^5 = 243
...
ciąg ostatnich liczb: 3,9,7,1
3^20 = ...1
5^1 = 5
5^2 = 25
5^3 = 125
5^12 = ...5
8 + 1 = 9
9 - 5 = 4
4^2 = 16
ostatnia cyfra liczby (2^15 + 3^20 - 5^12) to 6