C :

#include<stdio.h>
 int main()
 {
   int a,b,c,re;
   scanf("%d %d %d",&a,&b,&c);
   if(a>b)
     re=a;
     else
     re=b;
    if(c>re)re=c;
   printf("%d",re);
   return 0;
 }

C++ :

#include<iostream>
using namespace std;
int main()
{
	int a,b,c,ma;
	cin>>a>>b>>c;
	ma=a>b?(a>c?a:c):(b>c?b:c);
	cout<<ma<<endl;
	return 0;
}

Pascal :

var a,b,c,max:longint;
  begin
    readln(a,b,c);
    max:=a;
	if max<b then max:=b;
	if max<c then max:=c;
	writeln(max);
  end.

Python :

# coding=utf-8
n=input()
m=n.split(' ')
l=[]
for i in m:
    l.append(int(i))
p = l[0]
for i in range(1, len(l)):
    if l[i]>p:
        p=l[i]
print(p)