9,12,15.18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147, 150,153,156,159,161,164,167,170,173,176,179,181,184,187,190,193,196,199,201,204,207,210,213,216.
