#include <stdio.h>
#include <stdlib.h>

float cast(int val);
int common_digit(char denominator_digit,char *numerator);
int main()
{
	char denominator_string[3],numerator_string[3];
	float quotient;
	int digit,denominator=9,denominators[100],number_elements=0,index,numerator,numerators[100];

	for(;denominator++<99;)
		for(numerator=denominator;numerator++<99;)
			if(denominator%10!=0&&numerator%10!=0&&denominator!=numerator)
			{
				sprintf(denominator_string,"%i",denominator);
				sprintf(numerator_string,"%i",numerator);
				for(index=0;index<2;index++)
				{
					digit=common_digit(denominator_string[index],numerator_string);
					if(digit!=-1)
					{
						if((numerator_string[digit==0?1:0]-48)!=(denominator_string[index==0?1:0]-48))
						{
							quotient=cast(numerator_string[digit==0?1:0]-48)/(denominator_string[index==0?1:0]-48);
							if(quotient==cast(numerator)/denominator)
							{
								denominators[number_elements]=denominator;
								numerators[number_elements]=numerator;
								number_elements++;
								index=2;
							}
						}
					}
				}
			}
	for(index=1;index<number_elements;index++)
	{
		denominators[0]*=denominators[index];
		numerators[0]*=numerators[index];
	}
	printf("\n\t%i\n\n",numerators[0]/denominators[0]);
return 0;
}
float cast(int val)
{
	return (float)val;
}
int common_digit(char denominator_digit,char *numerator)
{
	return (denominator_digit!=numerator[0]?(denominator_digit!=numerator[1]?-1:1):0);
}