//16

#include <stdio.h>
#include <math.h>


int main()
{
int d,a;
float c;
printf("podaj prad\n");

a=scanf("%d",&d);

if(a!=1)
{
printf("Incorrect input");
return 1;
}
else if(d<=50)
{
c=d*0.5*0.22;
printf("koszt to %f",c);
}
else if(d<=150)
{
c=d*0.75*0.22;
printf("koszt to %f",c);
}
else if(d<=250)
{
c=d*1.2*0.22;
printf("koszt to %f",c);
}
else if(d>250)
{
c=d*1.5*0.22;
printf("koszt to %f",c);
}


return 0;
}

//3
#include <stdio.h>
#include <math.h>


int main()
{
int d,m,r,a;

printf("Podaj date (w formacie dd-mm-yyyy)\n");

a=scanf("%d-%d-%d",&d,&m,&r );

if(a!=3)
{
printf("Incorrect input");
return 1;
}
else if((d>0) && (d<=31) && (r>0) &&( (m==1) || (m==3) || (m==5) || (m==7) || (m==8) || (m==10) || (m==12) ))
    {
    printf("Correct");
    }
    else if((d>0) && (d<=30) && (r>0) &&( (m==4) || (m==6) || (m==9) || (m==11) ) )
    {
    printf("Correct");
    }
    else if((d>0) && (d<=28) && (r>0) && (m==2))
    {
    printf("Correct");
    }
     else if((d>0) && (d<=29) &&((r%400==0)||(r%4==0 &&r%100!=0)) && (m==2))
    {
    printf("Correct");
    }
    else
    {
        printf("Incorrect");
    }
return 0;
}