License to maintain a radiation source (generator/ radioactive assembly)

^*Gold Numbers:

Numbers with 4 repetitive digits (e.g 4444)

Number with 4 consecutive digits (e.g 3456)

^***Bronze Numbers:

Numbers with any 2 repetitive digits ( 10 22 )

Numbers with any 3 consecutive digits ( 2 456)

^**Silver Numbers:

Numbers with 3 repetitive digits (e.g 3444)

Numbers pairs (e.g 34 34, 22 55)

^****Ordinary Numbers:

Numbers not falling in any of the above category or with random numbers