new

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

int main()
{
    int a,b,s;
    scanf("%d %d",&a,&b);
    if(a<0 &&a >168)
    {
        printf("input is wrong!\n");
    }
    if(a<=40)
    {
        s=a*b;
        printf("%d\n",s);
    }
    if(a>40 && a<=60)
    {
        s=40*b+(a-40)*(1.5*b);
        printf("%d\n",s);
    }
    if(a>60)
    {
        s=(a-60)*3*b+(20*1.5)+40*b;
        printf("%d\n",s);
    }
    return 0;
}