32+12+34+56+56+66+67+57+6+9+8++65++6+7+8

By simplifying the given equation, we get:

32 + 12 + 34 + 56 + 56 + 66 + 67 + 57 + 6 + 9 + 8 + 65 + 6 + 7 + 8

= 521