#include<cstdio>
struct money{
	int G;
	int S;
	int K;
}A,B;
void Mul(money m,long long &sum);
int main(){
	scanf("%d.%d.%d",&A.G,&A.S,&A.K);
	scanf("%d.%d.%d",&B.G,&B.S,&B.K);
	
	long long sum1=0,sum2=0,sum=0;
	Mul(A,sum1);
	Mul(B,sum2);
	sum=sum1+sum2;
	
	printf("%ld.%ld.%ld",sum/(17*29),sum%(17*29)/29,sum%29);
}

void Mul(money m,long long &s){
	s=(long long)(17*29)*m.G+m.S*29+m.K;
    
}