C :

#include <stdio.h>
void main()
{
	int n,m;
	double p;
	scanf("%d %d",&n,&m);
	if(m>=5)
	{
		p=n*0.0475*m+n;
	}else if(m==3||m==4){
		p=n*0.0425*m+n;
	}else if(m==2){
		p=n*0.0375*m+n;
	}else if(m==1){
		p=n*0.0325*m+n;
	}
	printf("%.1f",p);
	  
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n ,m ;
    double s;
    cin>>n>>m;
    if(m==1){
    	s=n*0.0325*m+n;
	}else if (m==2){
		s=n*0.0375*m+n;
	}else if (m==3 || m==4){
		s=n*0.0425*m+n;
	}else{
		s=n*0.0475*m+n;
	}
	cout<<fixed<<setprecision(1)<<s<<endl;
}

Pascal :

var a,b:longint;
c:real;
begin
read(a,b);
if b=1 then c:=a*3.25/100*b
       else if b=2 then c:=a*3.75/100*b            
                   else if (b=3) or (b=4) then c:=a*4.25/100*b
                               else c:=a*4.75/100*b;
                               c:=c+a;
                               write(c:0:1);
end.

Java :

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		double s = 0;
		if(m == 1){
			s = n * (1 + 0.0325);
		}
		if(m == 2){
			s = n * 0.0375 * m + n;
		}
		if(m >= 3 && m <= 4){
			s = n * 0.0425 * m + n;	
		}
		if(m >= 5){
			s = n * 0.0475 * m + n;
		}
		System.out.println(String.format("%.1f",s));
	}
}	

Python :

a,b=map(int,input().split())
if b==1:
    S=a*(1+0.0325)
if b==2:
    S=a*0.0375*2+a
if 3<=b<=4:
    S=a*0.0425*b+a
if 5<=b:
    S=a*0.0475*b+a
print('%.1f'% S)