N=80;
beads=[2,3,5,192,3,5,992,493,95,102,3,5,102,83,455,102,33,45,102,23,45,302,3,15,102,113,115,102,3,35,102,3,45,102,3,55,112,3,5,102,3,785,202,93,5,102,3,85,102,3,5,102,3,5,102,3,5,102,3,5,102,3,85,102,3,5,102,3,5,102,3,5,102,3,17,112,13,5,102,23];