include<stdio.h>

include<string.h>

double sum=0; void prt(char str,char str1,char str2,double x){

if(str1<='9'&&str1>='0'){
	if(str2>='0'&&str2<='9')
		 sum+=x*((10*str1-480)+(str2-49));
	else sum+=x*(str1-49);
		}
if(str=='C'||str=='O'||str=='N'||str=='H')
	sum+=x;	

} int main(){

int n=0;
char str[92]={0};
double x=0;
scanf("%d",&n);
for(int i=0;i<n&&scanf("%s",&str)!=EOF;i++){
	int j=strlen(str);
	for(int g=0;g<j;g++){
	if(str[g]=='C') x=12.01;
	else if(str[g]=='N') x=14.01;
	else if(str[g]=='H') x=1.008;
	else if(str[g]=='O') x=16.00;
	else x=0;
	if (x!=0) prt(str[g],str[g+1],str[g+2],x);
}
	printf("%.3f\n",sum);
	sum=0;
}

}

include <stdio.h>

include <string.h>

include

int main() {

int N,i,j=0,k=0,p=0;
double a[4]={12.01,1.008,16.00,14.01};
int n[4]={0};
char got,t[4]={'C','H','O','N'};
scanf("%d",&N);
getchar();
for(i=0;i<N;i++){
	got=getchar();
	while(got!=10){
		if(isdigit(got)==0){
			k=0,j=0;
			while(got!=t[j])
			j++;
			got=getchar();
		}	
		while(isdigit(got)){
			k=k*10+got-48;
			got=getchar();
			p=1;
		}
		if(k==0) n[j]++;
		if(p=1) n[j]+=k;
	}
	printf("%.3lf",a[0]*n[0]+a[1]*n[1]+a[2]*n[2]+a[3]*n[3]);
	printf("\n");
	memset(n,0,sizeof(n));
}

}

include <stdio.h>

include <string.h>

include

int main() {

int N,i,j=0,k=0,p=0;
double a[4]={12.01,1.008,16.00,14.01};
int n[4]={0};
char got,t[4]={'C','H','O','N'};
scanf("%d",&N);
getchar();
for(i=0;i<N;i++){
	got=getchar();
	while(got!=10){
		if(isdigit(got)==0){
			k=0,j=0;
			while(got!=t[j])
			j++;
			got=getchar();
		}	
		while(isdigit(got)){
			k=k*10+got-48;
			got=getchar();
			p=1;
		}
		if(k==0) n[j]++;
		if(p=1) n[j]+=k;
	}
	printf("%.3lf",1LU*a[0]*n[0]+a[1]*n[1]+a[2]*n[2]+a[3]*n[3]);
	printf("\n");
	memset(n,0,sizeof(n));
}

}