#include <iostream> using namespace std; int Change(char a[], int b[]) { int ans = 0, k = 0; int ret = 1; for (int i = 49; i >= 0; i--) { if (a[i] == ',') { i--; if (a[i - 1] != ',' && i > 0) { ret *= b[k++]; ans += (((a[i - 1] - '0') * 10 + (a[i] - '0')) * ret); i--; } else { ret *= b[k++]; ans += ((a[i] - '0') * ret); } } else if (a[i] == '1' || a[i] == '0') { ans = a[i] - '0'; } } return ans; } void Change1(int a, int c[]) { int ret = 1, i = 0; char b[50]; while (a >= ret) { if (a < ret * c[i]) break; ret *= c[i++]; } int j = 0, k = 0; while (i > 0) { if (a == 0) { b[k++] = '0'; b[k++] = ','; i--; } else { j = a / ret; a = a % ret; ret = ret / c[i - 1]; if (j < 10) { b[k++] = j + '0'; } else { int l; l = j / 10; j = j % 10; b[k++] = l + '0'; b[k++] = j + '0'; } b[k++] = ','; i--; } } b[k++] = a + '0'; b[k] = '\0'; cout << b << endl; } int main() { char a[50], b[50]; int c[25]; int i = 0, j = 2; int flag = 0; while (i < 25) { flag = 0; for (int k = 2; k * k <= j; k++) { if (j % k == 0 && j != k) { flag = 1; break; } } if (flag == 0) { c[i++] = j++; } else { j++; } } while (cin >> a >> b) { int ea, eb; ea = Change(a, c); eb = Change(b, c); Change1(ea + eb, c); return 0; } }