7792 번 : Superstitious Skylab Tower 
 7792 번 
 7792 번 - Superstitious Skylab Tower 
 Each case consists of two integers , k ( 0 < k ≤ 1012 ) the floors which height is requested , and h ( 0 < h ≤ 1 , 000 , 000 ) the height for each floor . You may safely assume that all numbers are valid , in other words , do not contain the numbers 4 and / or 13 as its substring which the scientists avoid .