#include <bits/stdc++.h>

using namespace std;


typedef int32_t h_int32;
typedef int64_t h_int64;
typedef uint32_t uh_int32;
typedef uint64_t uh_int64;
typedef h_int64 h_int;

#define REP( i, n ) for(int i = 0; i < ( int )( n ); ++i )
#define REPR( i, n ) for(int i = ( int )( n ); i >= 0; --i)
#define FOR( i, a, n ) for(int i = ( int )( a ); i < ( int )( n ); ++i )
#define FORR( i, a, n ) for(int i = ( int )( n ); i >= ( int )( a ); --i)

#define VINIT( v, type, n )vector<type> v; v.resize( n );
#define VINIT2( v, type, n, a )vector<type> v; v.resize( n, a );
#define VCIN( v, type, n ) VINIT( v, type, n ) REP( i, n ) cin >> v[i];
#define ALL( x ) x.begin(), x.end()

#define DOUT( x ) cerr << #x << " = " << x << "\n"
#define COUT( x ) cout << ( x ) << "\n"

#define INF 999999999

signed main()
{
        ios::sync_with_stdio( false );
        cin.tie( 0 );

        int a1, a2, a3;
        cin >> a1 >> a2 >> a3;

        if( a1 == a2 || a2 == a3 || a3 == a1 )
        {
                COUT( 0 );
                return 0;
        }
        if( ( a2 < a1 && a2 < a3 ) || ( a2 > a1 && a2 > a3 ) )
        {
                COUT( "INF" );
                return 0;
        }

        int m = max( a1, a2 );
        m = max( m, a3 );

        int cnt = 0;
        FOR( i, 1, m + 1 )
        {
                int b1, b2, b3;
                b1 = a1 % i;
                b2 = a2 % i;
                b3 = a3 % i;
                if( b1 == b3) continue;
                if( ( b2 < b1 && b2 < b3 ) || ( b2 > b1 && b2 > b3 ) ) ++cnt;
        }
        COUT( cnt );
        return 0;
}