text: printing the prime combinations
code: Console . Write ( " Prime ▁ combinations : ▁ " ) ; if ( isPrime ( num ) && isPrime ( rev ) ) { Console . WriteLine ( num + " ▁ " + rev ) ; } else if ( isPrime ( num ) ) { Console . WriteLine ( num ) ; } else if ( isPrime ( rev ) ) { Console . WriteLine ( rev ) ; } else { Console . WriteLine ( " No ▁ combinations ▁ exist " ) ; } }