One column of numbers consists of 61, 24, and 47. When the digits of the numbers are added together, the result is 6 + 1 + 2 + 4 + 4 + 7 = 24, and when the digits of 24 are then added together, the end result is 2 + 4 = 6. If the same process is performed on the numbers in a second column, what can be concluded?