print("Sequence of numbers from 20 to 50:")
print(seq(20,50))
print("Mean of numbers from 20 to 60:")
print(mean(20:60))
print("Sum of numbers from 51 to 91:")
print(sum(51:91))

     
           
Note: Need to be arranged in compiler after copied
   

 OutPut:

"Sequence of numbers from 20 to 50:"
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
"Mean of numbers from 20 to 60:"
40
"Sum of numbers from 51 to 91:"
2911