156477

Since numbers 1-9 are all 1 digit numbers, we found out that all the numbers from 1-9 had a different symbol. We now knew all those symbols, so we could easily put the other symbols in place. We did the second column and we knew that the first 9 numbers had to have a 1 in the tens column which meant that the unit column had to have the symbols of 1, 2, 3, 4, 5, 6, 7, 8, and 9. From that we found all the other symbols easily.