C :

#include<stdio.h>
int main()
{
	
  int a,b,c,i;
  scanf("%d%d%d",&a,&b,&c);
  for(i=11;i<=100;i++)
  {
  	if(i%3==a&&i%5==b&&i%7==c)
  	{
  	printf("%d",i);break;}
  	
  	
  }
	if(i==101) printf("no answer");
	
	
	
	return 0;
	
}

C++ :

#include<iostream>
using namespace std;
int main()
{
  int a,b,c,f=0;
  cin>>a>>b>>c;
   for (int i=10;i<=100;++i)
   {  if ((i%3==a)&&(i%5==b)&&(i%7==c))
	    {cout<<i<<endl;
	    f++;break;}
	}
	if (f==0)
	  cout<<"no answer"<<endl;

  return 0;
}	
  

Python :

# coding=utf-8
a,b,c=map(int,input().split())
for i in range (10,101):
    if i%3==a and i%5==b and i%7==c:
        print(i)
        break
else:
    print("no answer")