check for each possible digit if given number consist other then 1 , 14 , 144 print NO else print YES
if ( temp % 1000 == 144 ) temp = parseInt ( temp / 1000 , 10 ) ; else if ( temp % 100 == 14 ) temp = parseInt ( temp / 100 , 10 ) ; else if ( temp % 10 == 1 ) temp = parseInt ( temp / 10 , 10 ) ; else { return " " ; } } return " " ; }