> #include <stdio.h>
> #include <iostream>
> 
> using namespace std;
> 
> int num[4][88];
> 
> int max(int a, int b, int c) 
> {
> 	int max_abc = a;
> 
> 	if (max_abc > b)
> 		max_abc = b;
> 	if (max_abc > c)
> 		max_abc = c;
> 
> 	return max_abc;
> }
> 
> void caculate(int i, int j) 
> {
> 	int l, k;
> 
> 	l = max(num[j][0], num[(j + 1) % 4][0], num[(j + 2) % 4][0]);
> 
> 	for (k = l; k >= 0; k--) {
> 		num[i][k] = 0;
> 	}
> 
> 	for (k = 1; k < l + 3; k++){
> 		num[i][k] += num[j][k] + num[(j + 1) % 4][k] + num[(j + 2) % 4][k];
> 		while (num[i][k] >= 10) {
> 			num[i][k] -= 10;
> 			num[i][k + 1]++;
> 		}
> 	}
> 	l += 3;
> 	while (num[i][l] == 0 )
> 		l--;
> 	num[i][0] = l;
> }
> 
> int main()
> {
> 	int a, b, c, i;
> 	while (scanf("%d%d%d", &a, &b, &c) != EOF) {
> 		if (a == 0 && b == 0 && c == 0) {
> 			printf("0\n");
> 			continue;
> 		}
> 		for (i = 0; i < 88; i++) {
> 			num[0][i] = 0;
> 			num[1][i] = 0;
> 			num[2][i] = 0;
> 			num[3][i] = 0;
> 		}
> 		
> 		i = 1;
> 		while (a > 0) {
> 			num[0][i++] = a % 10;
> 			a /= 10;
> 		}
> 		num[0][0] = i;
> 		i = 1;
> 		while (b > 0) {
> 			num[1][i++] = b % 10;
> 			b /= 10;
> 		}
> 		num[1][0] = i;
> 		i = 1;
> 		while (c > 0) {
> 			num[2][i++] = c % 10;
> 			c /= 10;
> 		}
> 		num[2][0] = i;
> 		for (i = 3; i < 100; i++) {
> 			caculate(i % 4, (i - 3 ) % 4);
> 		}
> 		for (i = num[3][0]; i > 0; i--) {
> 			printf("%d", num[3][i]);
> 		}
> 		printf("\n");
> 	}
> 	return 0;
> }