#include <stdio.h>
#include <math.h>
#define K 7
#define Z 4


int main(){
    float a,b,c,arch,mn,p0,p,h,ln,an,sum;int m;
    printf("Input varables a, b, c \n");
    scanf("%f %f %f",&a, &b , &c);
    arch=a;
    if(arch <= b)
            arch = b;
    if(arch <= c)
            arch = c;
    printf("Max is %f\n",arch);
    printf("Input m, h and p0\n");
    scanf("%i%f%f",&m,&h,&p0);
    mn=pow(arch,4)/3;//factor recurrent function
    for(int i = 1;i<m+1;i++){
            p=p0+(i-1)/h;
            ln = log(p);
            an=ln+mn;//a1
            sum=an;
            for(int k=2;k<K+1;k++){
                    printf("a%i = %f\n",k-1,an);//output previous a
                    mn=mn*((arch*(2*k-3))/((2*k-1)*k));//creat new factor
                    an=ln+mn;//create a new a
                    if(k<Z+1)sum = sum + an;//search first 4 answer
                    }
            printf("a%i = %f\nsum = %f\n",K,an,sum);
            }
    getch();
    return 0;
}