#include
#include
int convertToBase10(int x, int base){
int result = 0;
int i = 0;
while(x>0){
result += (x%10)*pow(base,i);
i++;
x/=10;
}
return result;
}
int convertFromBase10(int x, int base){
int result = 0;
int i = 0;
while(x>0){
result += (x%base) * pow(10,i);
x/=base;
i++;
}
return result;
}
int main(){
int base1,base2,x;
scanf("%d %d %d",&base1,&base2,&x);
x = convertFromBase10(convertToBase10(x,base1),base2);
int n = (int)log10(x) + 1;
x *= (int)pow(10,n%2);
n += n%2;
int halfSize = (int)pow(10,ceil(((int)log10(x) + 1)/2)) + (((int)log10(x) + 1) == 0);
int part1 = x%((int)pow(10,n/2));
x%(halfSize);
int part2 = x/((int)pow(10,n/2));
x/(halfSize);
int result = convertToBase10(part1,base2) + convertToBase10(part2,base2);
printf("%i",convertFromBase10(result,base2));
}
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