Nadim Mahmud 191-15-2631

#include<stdio.h>
int main()
{
    int a,b,sum;
    scanf("%d %d",&a,&b);
    sum = abs(a-b);
    printf("sum = %d",sum);
    return 0;

}


#include<stdio.h>
int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    int temp=a;
    a=b;
    b=temp;
    printf("a=%d,b=%d",a,b);
    return 0;
}


#include<stdio.h>
int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    a = a+b;
    b =a-b;
    a=a-b;
    printf("a=%d,b=%d",a,b);
    return 0;

}

#include<stdio.h>
int main()
{
    double u,a,t,s;
    scanf("%lf %lf %lf",&u,&a,&t);
    s=u*t+0.5*a*t*t;
    printf("s=%lf",s);
    return 0;
}

#include<stdio.h>
int main()
{
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    if((a>b)&&(a>c)){
        printf("%d is the maximum number",a);
    }
    else if((b>a)&&(b>c)){
        printf("%d is the maximum number",b);
    }
    else{
        printf("%d is the maximum number",c);
    }
    return 0;
}


#include<stdio.h>
int main()
{
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    if(a>b){
        if(a>c){
            printf("%d is the maximum number",a);
        }
        else{printf("%d is the maximum number",c);}
    }
    else{
        if(b>a){if(b>c){
            printf("%d is the maximum number",b);
        }
        else{printf("%d is the maximum number",c);}

        }
    }
}




#include<stdio.h>
int main()
{
    int s,v,t;
    while(scanf("%d %d",&v,&t)!=EOF)
    {
        printf("%d\n",2*v*t);
    }
     return 0;

}