diff --git a/calc b/calc
deleted file mode 100755
index 023ec18..0000000
Binary files a/calc and /dev/null differ
diff --git a/calc.c b/calc.c
deleted file mode 100644
index 85f1466..0000000
--- a/calc.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <stdio.h>
-#include "operators.h"
-
-int main(){
-	FILE *fp = NULL;
-	int operand1, operand2;
-	char operator = ' ';
-	int result, line = 0;
-
-	fp = fopen("read.txt","r");
-	if(fp!=NULL){
-		fscanf(fp, "%d", &line);
-	
-		for(int i=0; i<line; i++) {
-			fscanf(fp, "%d %c %d",&operand1, &operator, &operand2);
-			switch(operator) {
-				case '+':
-				result = add(operand1, operator);
-				break;
-				case '-':
-				result = minus(operand1, operator);
-				break;
-				case '*':
-				result = mul(operand1, operator);
-				case '/':
-				result = div(operand1, operator);
-				break;
-			}		
-			printf("%d %c %d = %d\n",
-				 operand1, operator, operand2, result);
-		}
-	}
-	return 0;
-}
-
diff --git a/calc.o b/calc.o
deleted file mode 100644
index e2bf1e7..0000000
Binary files a/calc.o and /dev/null differ
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..13927ef
--- /dev/null
+++ b/main.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <string.h>
+#include "my_fscanf.h"
+
+int main(){
+	fp = fopen("points.txt","r");
+	char type[10];
+	double x,y;
+	int line;
+
+	if(fp!=NULL){
+		my_fscanf(fp, "%d", &line);
+		for(int i =0; i < line; i++){
+			my_fscanf(fp, "%s (%f,%f)",type, &x, &y);
+			if(strcmp(type, "point") == 0) {
+				printf("X: %f:, Y: %f\n", x, y);
+			}
+		}
+	}
+	return 0;
+}
diff --git a/my_fscanf.c b/my_fscanf.c
new file mode 100644
index 0000000..646b1e0
--- /dev/null
+++ b/my_fscanf.c
@@ -0,0 +1,82 @@
+#include "my_fscanf.h"
+#include <stdarg.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+void my_fscanf(FILE *fp, const char *format, ...) {
+	va_list list;
+	va_start(list, format);
+	while(*format) {
+		if(*format == '%'){
+			format++;
+			switch(*format){
+			case 'd':{
+				int c = getc(fp);
+				int *s=va_arg(list, int*);
+				
+				while(isspace(c)){
+				
+				}
+				unsigned int num= 0;
+				while(isdight(c)){
+					*s = num * 10 + c -'0';
+					c=getc(fp);
+				}
+				while (isspace(c)){}
+				format++;
+				ungetc(c,fp);
+				break;
+			}
+			case 'c':{
+				char *ch = va_arg(list,char*);
+				char c=getc(fp);
+				while (isspace(c)){}
+				*ch = c;
+				format++;
+				break;
+			}
+			case 's':{
+				char *sp = va_arg(list, char*);
+				int s = 1;
+				while(isspace(c=getc(fp))){}
+				
+				while (!isspace(c=getc(fp))){
+					sp[s]=c;
+					s++;
+				}
+				sp[s]=0;
+				format++;
+				ungetc(c,fp);
+				break;
+			}
+			case 'f':{
+				double *f_p=va_arg(list, double*);
+				double di = 0.1;
+				double c=getc(fp);
+				while(isspace(c)){}
+				*f_p = 0;
+				while (isdigit(c)){
+					*f_p= *f_p * 10 + c - '0';
+					c= getc(fp);
+				}
+				if (c == '.'){
+					c = getc(fp);
+					while(isdigit(c)){
+						*f_p=*f_p + (c - '0') * di;
+						di = di* 0.1;
+						c=getc(fp);
+					}
+				}
+				format++;
+				ungetc(c,fp);
+				break;
+		}
+		else{
+			int c = getc(fp);
+			if(*format==c)
+				format++;
+		}
+	}
+	va_end(list);
+}
diff --git a/my_fscanf.h b/my_fscanf.h
new file mode 100644
index 0000000..d2b9307
--- /dev/null
+++ b/my_fscanf.h
@@ -0,0 +1,7 @@
+#ifndef MY_FSCANF_H
+#define MY_FSCANF_H
+#include <stdio.h>
+
+void my_fscanf(FILE *fp,const char *format, ...);
+
+#endif
diff --git a/operators.c b/operators.c
index d51cb3e..af88940 100644
--- a/operators.c
+++ b/operators.c
@@ -10,7 +10,8 @@ int mul(int op1, int op2) {
 	return op1*op2;
 }
 
-int div(int op1, int op2) {
-	return op1%op2;
+double div(int op1, int op2) {
+	return (double)op1/(double)op2;
 }
 
+
diff --git a/operators.h b/operators.h
index bd08f7d..e16bf60 100644
--- a/operators.h
+++ b/operators.h
@@ -1,4 +1,4 @@
 int add(int op1, int op2);
 int mul(int op1, int op2);
-int div(int op1, int op2);
+double div(int op1, int op2);
 int minus(int op1, int op2);
diff --git a/operators.o b/operators.o
deleted file mode 100644
index 71b996c..0000000
Binary files a/operators.o and /dev/null differ
diff --git a/points.txt b/points.txt
new file mode 100644
index 0000000..8954fb7
--- /dev/null
+++ b/points.txt
@@ -0,0 +1,5 @@
+4
+point (1.3,2.2)
+point (2.5,3.0)
+point (3.2,4.4)
+point (1.0,5.9)
diff --git a/read.txt b/read.txt
deleted file mode 100644
index 3e2bf01..0000000
--- a/read.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-5
-123 + 456
-234 * 234
-143 - 111
-987 / 132