#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <math.h>



sfr at 0x98 SCON;
sfr at 0x89 TMOD;
sfr at 0x88 TCON;
sfr at 0x87 PCON;
sbit at 0x98 RI;
sbit at 0x99 TI;
sfr at 0x8D TH1;
sfr at 0x8B TL1;
sfr at 0x99 SBUF;


#define BUFFOR_SIZE 3
#define BUFFOR_EXIT_SIZE 4
#define MAX_SIZE_INT 4


char getchar(void)
{
    while (RI == 0) { };
    RI = 0;
    return (char) SBUF;
}

void putchar(char c)
{
    SBUF = c;
    while (TI == 0) { };
    TI = 0;
}

int isInt(char c)
{

    if (isdigit(c))
    {
        putchar('I');
        return 1;
    }
    else
    {
        putchar('A');
        return 0;
    }
}
float tofloat(char* s) {
    unsigned long long int m = 1;
    float ret = 0;
    int a = (int)(sizeof(s)/sizeof(char));
    putchar('F');
    for(a; a >= 0; a--)
    {
        ret += (s[a] - '0') * m;
        m *= 10;
    }
    return ret;
}
char* ToOCT(float quotient)
{
    int i = 0;
    char tmp[MAX_SIZE_INT];
    putchar('O');
    while (quotient != 0)
    {
        tmp[i] = (char)quotient % 8;
        i = i +1;
        quotient = quotient / 8;
    }
    putchar('P');
    return &tmp[0];
}
void Wyslij(char* tabl)
{
    int i = 0;
    putchar('W');

    for(i; i < sizeof(tabl)/sizeof(tabl[0]);i++)
    {
        putchar('Q');
        //Nic tu nie wypisuje
        putchar(tabl[i]);
    }
}
float Operation(float a1,float a2,float a3)
{
    return a1 - a2 * a3;
}

void main()
{

    char BUFFOR[BUFFOR_SIZE][MAX_SIZE_INT];

    int PosA = 0;
    int PosC = 0;


    SCON=0x50;
    TMOD &= 0x0f;
    TMOD |= 0x20;
    TCON=0x40;
    PCON=0x80;
    TH1 = TL1 = 0xfd;
    TI = 0;

    for(;;)
    {
        char c = getchar();
        if(isInt(c) == 1){ BUFFOR[PosA][PosC] = c;++PosC;}
        else ++PosA;

        if(PosA == 3)
        {
            putchar('S');
            Wyslij
                (
                ToOCT
                    (
                    Operation
                            (
                                tofloat(BUFFOR[0]),tofloat(BUFFOR[1]),tofloat(BUFFOR[2])
                            )
                    )
                );
            PosA = 0;
            PosC = 0;
        }
    }
}