0*4,1*4,2*4,3*4,4*4,4*3,5*3,6*3,7*3,8*3,9*3,10*3,11*3,12*2,13*2,14*2,15*2,16*2,17*2,18*2,19*2,20*2,21*2,22*3,23*3,24*3,25*3,26*3,27*4,28*4,29*4,30*4,31*4