diff --git a/a1/program.c b/a1/program.c
new file mode 100644
index 0000000..148b094
--- /dev/null
+++ b/a1/program.c
@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+int main(){
+	
+	char pole[100];
+	char* a = fgets(pole, 100, stdin);
+	double cislo1;
+	double cislo2;
+	double vysledok;
+	char znamienko;
+	char* token;
+
+	token = strtok(pole, " "); //rozdelenie retazca podla medzier
+    cislo1 = atoi(token); // premena stringu na cislo a priradenie cislu1
+    token = strtok(NULL, " "); //pokracovanie v rozdelovani retazca
+    znamienko = token[0]; // vrati ukazatel na nasledujuci token, cize znamienko
+    token = strtok(NULL, " =\n"); 
+    cislo2 = atoi(token);
+    token = strtok(NULL, " =\n");
+    vysledok = atoi(token);
+
+	double realny;
+
+	switch (znamienko){
+		case '+':
+			realny = cislo1 + cislo2; 
+			break;
+		case '-':
+			realny = cislo1 - cislo2; 
+			break;
+		case '*':
+			realny = cislo1 * cislo2; 
+			break;
+		case '/':
+			realny =cislo1 / cislo2; 
+			break;
+		default:
+			printf("CHYBA\n");
+			return 1;
+	}
+	if (realny == vysledok){
+		printf ("OK\n");
+	}
+	else{ 
+		printf ("ZLE\n"); 
+	}
+
+	return 0;
+}
\ No newline at end of file
diff --git a/a1/program.exe b/a1/program.exe
new file mode 100644
index 0000000..43e990a
Binary files /dev/null and b/a1/program.exe differ
diff --git a/a1/program.exe.stackdump b/a1/program.exe.stackdump
new file mode 100644
index 0000000..1c22d7e
--- /dev/null
+++ b/a1/program.exe.stackdump
@@ -0,0 +1,33 @@
+Exception: STATUS_ACCESS_VIOLATION at rip=7FFF82234123
+rax=00007FFF822B57E0 rbx=0000000000000000 rcx=00000007FFFFCE00
+rdx=0000000000000000 rsi=000000000000000A rdi=0000000000000000
+r8 =0000000000000000 r9 =000000000000000A r10=00000007FFFFCE00
+r11=000000000000002A r12=00000007FFFFCE00 r13=0000000000000000
+r14=0000000000000000 r15=00007FFF822B57E0
+rbp=0000000000000000 rsp=00000007FFFFCAA0
+program=C:\cygwin64\home\matus\a1\program.exe, pid 2084, thread main
+cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B
+Stack trace:
+Frame         Function      Args
+000000000000  7FFF82234123 (000000000000, 0007FFFFCC40, 000100000370, 7FFF822B57E0) cygwin1.dll+0x174123
+0007FFFFCC40  7FFF82234411 (000A00000370, 0007FFFFCDF0, 000000000000, 000800021389) cygwin1.dll+0x174411
+0007FFFFCC40  7FFF82230591 (7FFF8239F0C0, 7FFF822B5800, 7FFF8239F160, A623D312A0061) cygwin1.dll+0x170591
+0007FFFFCC40  00010040112D (000000000000, 000000000000, 000000000000, 000000000000) program.exe+0x112D
+0007FFFFCD30  7FFF820C80A3 (000000000000, 000000000000, 000000000000, 000000000000) cygwin1.dll+0x80A3
+0007FFFFFFF0  7FFF820C5C86 (000000000000, 000000000000, 000000000000, 000000000000) cygwin1.dll+0x5C86
+0007FFFFFFF0  7FFF820C5D34 (000000000000, 000000000000, 000000000000, 000000000000) cygwin1.dll+0x5D34
+End of stack trace
+Loaded modules:
+000100400000 program.exe
+7FF812C10000 ntdll.dll
+7FF804620000 aswhook.dll
+7FF810960000 KERNEL32.DLL
+7FF80FF50000 KERNELBASE.dll
+7FFF820C0000 cygwin1.dll
+7FF8113F0000 advapi32.dll
+7FF811050000 msvcrt.dll
+7FF8112B0000 sechost.dll
+7FF810300000 bcrypt.dll
+7FF810A40000 RPCRT4.dll
+7FF80F6B0000 CRYPTBASE.DLL
+7FF810720000 bcryptPrimitives.dll