#include <stdio.h>
#include<math.h>
int a;
int convert(char c);
int toBinary(int b);
int toDecimal(int b);
int main()
{
scanf("%d",&a);
char c;
scanf("%c",&c); //scans the ENTER to clear it before scanning character
scanf("%c",&c); //a for toBinary, b for toDecimal
printf ("%c\n%d\n",c,convert(c));
return 0;
}
int convert(char c)
{
if (c == 'a')
return toBinary(a);
else if (c == 'b')
return toDecimal(a);
else
{
printf("ERROR");
return NULL;
}
}
int toBinary(int b)
{
if (b == 0)
{
return 0;
}
else
{
return (b % 2 + 10 * toBinary(b / 2));
}
}
int toDecimal(int b)
{
int d = 0, i = 0, r;
while (b!=0)
{
r = b%10;
b /= 10;
d += r*pow(2,i);
++i;
}
return d;
}
