#include <stdio.h>
#include <math.h>

int main(void)
{
  int num, numLength, tmpNum, sum = 0, n;

  scanf("%d", &num);
  numLength = log10(num);
  tmpNum = num;

  for(int i = numLength; i >= 0; i--)
  {
    n = tmpNum / pow(10, i);
    sum += pow(n, numLength+1);
    tmpNum = tmpNum % (int)pow(10, i);
  }

  if(sum == num) printf("true\n");
  else printf("false\n");

  return 0;
}