How many tori are on the front paws of a cat?

i just looked it up and i'm pretty sure it's nitrogen.

c. reduced urine flow; pain in the bladder sometimes, the pain will travel downward into the genital area. stones that have nearly passed into the bladder may be associated with an intense urge to urinate. stone pain typically comes and goes. after an initial period of severe pain, you may feel better for a few hours before developing another attacker