490.490.490.yevāpanakas, and eighteen groups;491.491.491.492.492.492.493.493.493.494.494.494.495.495.495.496.496.496.497.497.497.498.498.498.499.499.499.500.500.500.501.501.501.502.502.502.503.503.503.504.504.504.505.505.505.506.506.506.507.507.507.508.528.508.509.509.509.510.510.510.511.511.511.512.512.512.513.513.513.514.514.514.515.515.515.516.516.516.517.517.517.518.518.518.519.519.519.520.520.520.521.521.521.522.522.522.523.523.523.524.524.524.525.525.525.526.526.526.527.527.529.528.528.528.529.529.529.530.530.530.531.531.531.532.532.532.