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

int main ()
{
	//used to access two files
	FILE *input_file,*output_file;
	char c,e;
	int invalid=0;
	float xcord=0,ycord=0;
	float num=0; // whether we omit a digit
	float d=0.1;
	input_file = fopen("in1.txt","r");
	if (input_file == NULL)
	{
	printf ("File in1.txt cannot be opened \n");
	exit(1); // return 0
	}
    output_file = fopen ("out1.txt","w");
    if (output_file == NULL)
	{
	printf ("File out1.txt cannot be opened \n");
	exit(1);
	}

	c = fgetc(input_file);
	while (c != EOF) // EOF----> end of file
	{
	num=0;
	d=0.1;

	if(c == 'I'){
		c = fgetc(input_file);
		if (c == 'N'){
			c = fgetc(input_file);
			if (c == 'I'){
				c = fgetc(input_file);
				if (c == 'T'){
					c = fgetc(input_file);
					if (c == 'I'){
					c = fgetc(input_file);
						if (c == 'A'){
						c = fgetc(input_file);
							if (c == 'L'){
							c = fgetc(input_file);
							c = fgetc(input_file);
								if (c == '('){
								c = fgetc(input_file);
								while (c>='0'&&c<='9'){
                					num=num*10+c-'0';
                					c=fgetc(input_file);
          						}
            					if (c=='.'){
                				c=fgetc(input_file);
                    				while (c>='0'&&c<='9'){
                        			num=num+d*(c-'0');
                        			d=d*0.1;
                        			c=fgetc(input_file);
                   					}
            					}
            					xcord=num;
            					num=0;
            					d=0.1;
            					if (c == ','){
            					c = fgetc(input_file);
								while (c>='0'&&c<='9'){
                					num=num*10+c-'0';
                					c=fgetc(input_file);
          						}
            					if (c=='.'){
                				c=fgetc(input_file);
                    				while (c>='0'&&c<='9'){
                        			num=num+d*(c-'0');
                        			d=d*0.1;
                        			c=fgetc(input_file);
                   					}
            					}
            					ycord=num;
            					num=0;
            					if (c == ')'){
            					c=fgetc(input_file);
            						if(c != 'L'||(c != 'R')||(c != 'U')||(c != 'D')||(c != 'I')){
            						c=fgetc(input_file);
            						}
								}
						}
					}
				}
			}
		}
	}}}}

	if(c == 'L'){
		c = fgetc(input_file);
		if (c == 'E'){
			c = fgetc(input_file);
			if (c == 'F'){
				c = fgetc(input_file);
				if (c == 'T'){
					c = fgetc(input_file);
					c = fgetc(input_file);
					while (c>='0'&&c<='9'){
                		num=num*10+c-'0';
                		c=fgetc(input_file);
          				}
            		if (c=='.'){
                		c=fgetc(input_file);
                		if(c>='0'&&c<='9'){
                    		while (c>='0'&&c<='9'){
                        	num=num+d*(c-'0');
                        	d=d*0.1;;
                        	c=fgetc(input_file);
                   			}
                		}
            		}
            		xcord=xcord-num;
            		num=0;
            		c = fgetc(input_file);
				}
			}
		}
	}
	if (c == 'R'){
		c = fgetc(input_file);
    	if (c == 'I'){
		c = fgetc(input_file);
		if (c == 'G'){
			c = fgetc(input_file);
			if (c == 'H'){
				c = fgetc(input_file);
				if (c == 'T'){
					c = fgetc(input_file);
					c = fgetc(input_file);
					while (c>='0'&&c<='9'){
                		num=num*10+c-'0';
                		c=fgetc(input_file);
          				}
            		if (c=='.'){
                		c=fgetc(input_file);
                		if(c>='0'&&c<='9'){
                    		while (c>='0'&&c<='9'){
                        	num=num+d*(c-'0');
                        	d=d*0.1;;
                        	c=fgetc(input_file);
                   			}
                		}
            		}
            		xcord=xcord+num;
            		num=0;
            		c = fgetc(input_file);
            		}
				}
			}
		}
	}
	if (c == 'U'){
	c = fgetc(input_file);
		if (c == 'P'){
		c = fgetc(input_file);
		c = fgetc(input_file);
		while (c>='0'&&c<='9'){
            num=num*10+c-'0';
            c=fgetc(input_file);
        }
        if (c=='.'){
            c=fgetc(input_file);
            if(c>='0'&&c<='9'){
            while (c>='0'&&c<='9'){
            num=num+d*(c-'0');
            d=d*0.1;;
            c=fgetc(input_file);
            }
            }
        }
    	ycord=ycord+num;
        num=0;
        c = fgetc(input_file);
        }
	}
		if (c == 'D'){
		c = fgetc(input_file);
		if (c == 'O'){
			c = fgetc(input_file);
			if (c == 'W'){
				c = fgetc(input_file);
				if (c == 'N'){
					c = fgetc(input_file);
					c = fgetc(input_file);
					while (c>='0'&&c<='9'){
                		num=num*10+c-'0';
                		c=fgetc(input_file);
          				}
            		if (c=='.'){
                		c=fgetc(input_file);
                		if(c>='0'&&c<='9'){
                    		while (c>='0'&&c<='9'){
                        	num=num+d*(c-'0');
                        	d=d*0.1;;
                        	c=fgetc(input_file);
                   			}
                		}
            		}
            		ycord=ycord-num;
            		num=0;
            		c = fgetc(input_file);
				}
			}
		}
	}
	c=fgetc(input_file);
}
	fprintf (output_file, "Final Position: (%g,%g)", xcord,ycord);
	fclose (input_file);
	fclose (output_file);
}