/*********************************************
 * Description - RPCalc compiler
 * Author - Vilyaem
 * Date - Jun 05 2024
 * *******************************************/

#include <stdio.h>
#include <string.h>

char* regnames[] = { "%ax","%bx","%cx","%dx" };


int main(void){

  int stackptr = 0;
  char strbuf[8];
  char regnamebuf[16];
  char regnamebuf2[16];

  puts("/*Compiled with Vilyaem's simple rpcalc compiler*/");

  while(fgets(strbuf,8,stdin) != NULL){
    if(strbuf[0] == '\n'){
      break;
    }
    strbuf[strlen(strbuf)-1] = '\0';
    switch(strbuf[0]){
      case '+':
        strcpy(regnamebuf,regnames[stackptr-1]);
        strcpy(regnamebuf2,regnames[stackptr-2]);
        printf("add %%%s,%%%s\n",regnamebuf,regnamebuf2);
        --stackptr;
        break;
      case '-':
        strcpy(regnamebuf,regnames[stackptr-1]);
        strcpy(regnamebuf2,regnames[stackptr-2]);
        printf("sub %%%s,%%%s\n",regnamebuf,regnamebuf2);
        --stackptr;
        break;
      case '*':
        strcpy(regnamebuf,regnames[stackptr-1]);
        strcpy(regnamebuf2,regnames[stackptr-2]);
        printf("imul %%%s,%%%s\n",regnamebuf,regnamebuf2);
        --stackptr;
        break;
      default:  /*assume it is a numeric to be pushed*/
        printf("mv $%s,%%%s\n",strbuf,regnames[stackptr]);
        ++stackptr;
        break;
    }
    /*printf("# stackptr: %d", stackptr); for debugging*/
  }

  return 0;
}