phu[8], puh[8], hau[7], uha[7], phy[7], hip[6], phi[6], hop[6], piu[6], opu[6], hoy[6], hai[5], hao[5], hoi[5], opy[5], pai[4], pia[4], poi[4],
hu[6], ha[4], hi[4], ho[4], oh[4], au[4], pa[3], pi[3], op[3], po[3],