Using IFELSE function across multiple columns

I want to create a new column based on multiple columns of different data types

Names	1	2	3
A	000	NA	030
B	100	DDD	NA
C	XXX	000	050

Based on column 1-3, I want to add another column with the condition If value >= 30 then 1 else 0.

Output will be:

Names	1	2	3	4
A	000	NA	030	1
B	100	DDD	NA	1
C	XXX	000	015	0

Note : There are 36 such columns (1-36) across where I want to use the if condition and then create a new column.