1058

#include<cstdio>
using namespace std;


int main(){

long long G1, S1, K1;
long long G2, S2, K2;
scanf("%lld.%lld.%lld %lld.%lld.%lld", &G1, &S1, &K1, &G2, &S2, &K2);


long long A = G1 * 17 * 29 + S1 * 29 + K1;
long long B = G2 * 17 * 29 + S2 * 29 + K2;
long long sum = A + B;


long long G3, S3, K3;
G3 = sum / 17 / 29;
//S3 = (sum - G3 * 17 * 29) / 29;
S3 = (sum % (17 * 29)) / 29;
K3 = sum % 29;
printf("%lld.%lld.%lld\n", G3, S3, K3);


return 0;
}