In a certain code language, 'COMMUNITY' is written as 'YITUNMCOM' and 'Authority' is written as 'YITORHAUT'. How will 'ISOLATION' as written in that language ?

NIOATLISO

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

The logic here is;

(1st, 2nd and 3rd letters shifted to the 7th, 8th and 9th positions)

(4th letter shifted to 6th position)

(5th letter shifted to 4th position)

(6th letter shifted to 5th position)

(7th letter shifted to 2nd position)

(8th letter shifted to 3rd position)

(9th letter shifted to 1st position)

So,

that's how we get  'COMMUNITY' is written as 'YITUNMCOM' 

And,

'Authority' is written as 'YITORHAUT'

Similarly,

If we follow the same above pattern,

ISOLATION is written as NIOATLISO.