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Cod sursa(job #809838)
#include <cstdio>
using namespace std;
inline int next_int() {
int d;
scanf("%d", &d);
return d;
}
long long fi(long long n) {
long long result = n;
for (long long i = 2; i * i <= n; i++) {
if (n % i == 0)
result -= result / i;
while (n % i == 0)
n /= i;
}
if (n > 1)
result -= result / n;
return result;
}
inline long long pow(long long a, long long b, long long mod) {
long long ans = 1;
while (b) {
if (b & 1) {
ans = (ans * a) % mod;
}
a = (a * a) % mod;
b >>= 1;
}
return ans;
}
int main() {
freopen("inversmodular.in", "r", stdin);
freopen("inversmodular.out", "w", stdout);
long long n = next_int();
long long p = next_int();
printf("%lld\n", pow(n, fi(p) - 1, p));
return 0;
}