Countdow:d=4,o=6,b=125:16c,16a_5,c,2f5,16c_,16c,8c_,8c,2a_5,16c_,16c,c_,2f5,16a_5,16g_5,8a_5,8g_5,8g5,8a_5,2g_5,16g5,16g_5,2a_5,16g_5,16a_5,8c,8a_5,8g_5,8g5,f5,c_,1c,16c,16c_,16c,16a_5,1c