#include <stdio.h>
int main()
{
int kombSk, sk, i;
int cipars1, cipars2, cipars3, cipars4;
char kombiArr[]={};
kombSk=0;
for ( cipars1=0; cipars1<=9; cipars1++)
    for ( cipars2=0; cipars2<=9; cipars2++)
    for ( cipars3=0; cipars3<=9; cipars3++)
        for ( cipars4=0; cipars4<=9; cipars4++)
        {
        sk = 0;
        if ( cipars1!=cipars2 && cipars2!=cipars3) sk++;
        if ( cipars2!=cipars3 && cipars3!=cipars4) sk++;
        if ( cipars3!=cipars4 && cipars4!=cipars1) sk++;
        if ( cipars4!=cipars1 && cipars1!=cipars2) sk++;
        if ( sk==4 )
        {
        kombSk++;
        kombiArr[kombSk]=cipars1 & cipars2 & cipars3 & cipars4;
        }
        }
for ( i=0; i<=kombSk; i++ )
{
    printf ("[%s]", kombiArr[i]);
}
return 0;
}