#include<stdio.h>
#include<math.h>
int main()
{
    int c,d,e,f,module,yo,o,p;
    double a, b, sum, sub, multi, divide,ko;
    printf("what u want to calculate\nPress 1 for add\nPress 2 for subtract\nPress 3 for multiple\nPress 4 for divide\nPress 5 for module\nPress 6 for square root\n");
    scanf("%d",&c);
    printf("Enter valus\n");
    scanf("%lf %lf",&a,&b);
    sum=a+b;
    sub=a-b;
    multi=a*b;
    divide=a/b;
    if (c==1)
    {
        printf("\n%.2lf + %.2lf = %.2lf\n",a,b,sum);
    }
    else if (c==2)
    {
        printf("\n%.2lf - %.2lf = %.2lf\n",a,b,sub);
    }
     else if (c==3)
    {
        printf("\n%.2lf X %.2lf = %.2lf\n",a,b,multi);
    }
     else if (c==4)
    {
        printf("\n%.2lf / %.2lf = %.2lf\n",a,b,divide);
    }
    else if (c==5)

    {
        printf("for module enter the same value again\n");
        scanf("%d %d",&e,&f);
        if(e==a && f==b)
        {
            module=e%f;
        printf("\n %d module %d = %d\n",e,f,module);
        }
        else
        {
            printf("the value is invalid\n");
        }

    }
     else if (c==6)
    {
        printf("which sqrt u want\nPress 1 for sum\nPress 2 for subtract\nPress 3 for multiple\nPress 4 for divide\nPress 5 for module\n");
        scanf("%d",&d);
        if (d==1)
    {
        printf("\nsquare root of sum %.2lf is  = %lf\n",sum,sqrt(sum));
    }
    else if (d==2)
    {
        printf("\nsquare root of subtract %.2lf is = %lf\n",sub,sqrt(sub));
    }
     else if (d==3)
    {
        printf("\nsquare root of multiply %.2lf is = %lf\n",multi,sqrt(multi));
    }
     else if (d==4)
    {
        printf("\nsquare root of divide %.2lf is = %lf\n",divide,sqrt(divide));
    }
     else if (d==5)
    {
         printf("for square root of module enter the same value again\n");
        scanf("%d %d",&o,&p);
        if(o==a && p==b)
        {
            yo=o%p;
            ko=yo;
          printf("\nsquare root of module %d is = %lf\n",yo,sqrt(ko));
        }
        else
        {
            printf("the value is invalid\n");
        }
    }
}
return 0;
 }