10. Let the two roots of the quadratic equation $x^{2}+b x+c=0$ be 98 and 99. In the quadratic function $y=x^{2}+b x+c$, if $x$ takes the values $0,1,2,3, \cdots \cdots, 100$, then the number of times $y$ is divisible by 6 is $\qquad$
answer: 67