D - absolute value HDU - 2003

D - absolute value  HDU - 2003

Realistic absolute value of. 

Input

A plurality of input data sets, each one row, each row containing a real number.

Output

For each case, the absolute value of its output, each line of data output requirements, results of two decimals.

Sample Input

123
-234.00

Sample Output

123.00
234.00

Code Example:

#include<stdio.h>
#include<math.h>
int main(){
	double a;
	while(~scanf("%lf",&a)){
        printf("%.2lf\n",fabs(a));
    }
    return 0;
}

Or you can write your own functions:

#include<stdio.h>
double Fabs(double a){
    return a>0?a:-a;
}
int main(){
	double a;
	while(~scanf("%lf",&a)){
        printf("%.2lf\n",Fabs(a));
    }
    return 0;
}