#include <stdio.h>

int calc( int a, int b)
{
	if( a % b == 0 ) return b;

	int x = calc( b, a%b );
	return x;
}

int main(void)
{
	int i, a, b, x, y, c, d, s[3], f=1;
	scanf("%d %d", &a, &b);

	if( a >= b ) {
		s[0] = a*10;
		s[1] = b*10;
	} else if ( b > a) {
		s[0] = b*10;
		s[1] = a*10;
	}

	if( a+b == 101) {
		s[0] -= 5;
		s[1] -= 5;
	}
	s[2] = calc( s[0], s[1] );
	x = s[0] / s[2];
	y = s[1] / s[2];

	if( a+b == 101) {
		printf("%d\n", x+y);
		return 0;
	}

	while( f ) {
		f--;
		if( x > y*8 ) {
			c = ((x-1)*1000) / (x+y-1);
			if( c >= s[0]-5 && s[0]+5 > c ) {
				x--;
				f++;
			}
		}
		if( x > 1 && y > 1 ) {
			c = ((x-1)*1000) / (x+y-2);
			d = ((y-1)*1000) / (x+y-2);
			if( c >= s[0]-5 && s[0]+5 > c && d >= s[1]-5 && s[1]+5 > d ) {
				x--;
				y--;
				f++;
			}
		}
	}
	printf("%d\n", x+y);

	return 0;
}