double oa(double b,double l,double s){
    double o(s*sin(b*M_PI/180)/l);
    return asin(o)*180/M_PI;
}
double ba(double l,double s,double d){
    double o(pow(s,2)+pow(d,2)-pow(l,2));
    o=fabs(o/(2*s*d));
    return acos(o)*180.0/M_PI;
}
void sss(double a,double b,double c,double &A,double &B,double &C){
    if(a>b&&a>c){
        A=ba(a,b,c),B=oa(A,a,b),C=oa(A,a,c);
        if(A+B+C<180)
            A=180-A;
    }else if(b>c&&b>a){
        B=ba(b,a,c),A=oa(B,b,a),C=oa(B,b,c);
        if(A+B+C<180)
            B=180-B;
    }else{
        C=ba(c,a,b),A=oa(C,c,b),B=oa(C,c,b);
        if(A+B+C<180)
            C=180-C;
    }
}