Setiap nomor akan datang tiga kali kecuali satu
Logic:
1. Check out sum of every column => It is either in form of 3N or 3N+1.
2. Then convert it into decimals.
Viper
Logic:
1. Check out sum of every column => It is either in form of 3N or 3N+1.
2. Then convert it into decimals.