Consider the following python program and write the output str="UNIX Network Program" print(str[13:1) print(str[:8]) print(str[13:20]) print(str[:])

3. Write a C program multiplication Table.c that outputs the multiplication table as follows: X Multiplication Table 1 2 7 8 9 10 2 7 8 9 10 4 14 16 18 20 6 9 12 15 18 21 24 27 30 8 12 16 20 24 28 32 36 40 35 40 45 50 18 24 30 36 42 48 54 60 42 49 35 42 49 56 63 70 64 72 80 72 81 90 70 80 90 100 3 4 5 6 3 4 5 6 1 1 2 3 3 4 4 5 5 10 15 20 25 30 6 6 12 7 7 14 21 28 35 16 24 32 40 48 8 8 99 18 10 10 20 30 40 50 60 56 27 36 45 54 63

I need a C program where the input is postorder. For example, if the input is postorder: x1 5.12 + x2 7.68 - * x3 / then the resulting output would be an inorder: (((x1+5.12)*(x2-7.68))/x3)