#include<stdio.h> #include<string.h> int a[150],b[150],t[150]; int pr[150]; void prime() { int i, j, f, cnt = 1; pr[0] = 2; for(i = 3; ;i++) { f = 1; for(j = 2;j * j <= i; j++) { if(i % j == 0) { f = 0; break; } } if(f) pr[cnt++] = i; if(cnt > 120) break; } } void change(int l,int *p) { int cnt = 0; for(int i = l;i >= 0;i--) { p[cnt++] = t[i]; } } int main() { int i, j; prime(); while(1) { memset(a,0,sizeof(a)); memset(b,0,sizeof(b)); i = 0;j = 0; while(1) { scanf("%d",&t[i++]); if(getchar() == ' ') { change(i - 1,a); break; } } while(1) { scanf("%d",&t[j++]); if(getchar() == '\n') { change(j - 1,b); break; } } if(i == 1 && j == 1 && !a[0] && !b[0]) break; int temp = 0; for(i = 0; i < 120 ;i++ ) { a[i] = a[i] + b[i] + temp; temp = a[i] / pr[i]; a[i] = a[i] % pr[i]; } for(i = 120; i >= 0;i--) { if(a[i] != 0) break; } for(;i >= 0;i--) { printf("%d",a[i]); if(i) putchar(','); else putchar('\n'); } } return 0; }