How much is the sum of all the multiples of 3 in the 100 numbers 1-100? What is the sum of the remaining numbers?

How much is the sum of all the multiples of 3 in the 100 numbers 1-100? What is the sum of the remaining numbers?

3+6+9+12+15+18+21+14+17+30+33+36+39+42+45+48+51+54+57+60+63+66+69+72+ 75+78+81+84+87+90+93+96+99=1584