Print the 1-indexed data-row numbers of rows where email lacks @ or age is not 0-120 int.
CSV header: `name,email,age`. A row is **invalid** when:
- the `email` field does NOT contain `@`, or
- `age` is not an integer in the range 0..120 (inclusive).
Print the **1-indexed data row numbers** (header is row 0) of all invalid rows, in order.
Test input:
name,email,age
A,a@x,30
B,bx,25
C,c@y,200
D,d@z,not
E,e@w,40
Expected output:
2
3
4
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