#include <stdio.h>
int main() {
int a, b, c, i, n;
a >=1;
b >=1;
n = 0;
scanf("%d%d%d", &a
, &b
, &c
);
if (a < b) {
for (i = a; i <= b; i++) {
if (c % i == 0) {
n++;
}
}
}
else
{
for (i = b; i <= a; i++) {
if (c % i == 0) {
n++;
}
}
}
return 0;
}
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