using System;
using System.Text;
public class Test
{
public static void Main()
{
var s = "Eu $ tenho $2 muito $$dinheiro$$";
var sb = new StringBuilder();
for (int i = 0; i < s.Length; i++)
{
sb.Append(s[(s[i]=='$')?++i: i]);
}
Console.Write(sb);
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dDsKCnB1YmxpYyBjbGFzcyBUZXN0CnsKCXB1YmxpYyBzdGF0aWMgdm9pZCBNYWluKCkKCXsKCQl2YXIgcyA9ICJFdSAkIHRlbmhvICQyIG11aXRvICQkZGluaGVpcm8kJCI7IAoJCXZhciBzYiA9IG5ldyBTdHJpbmdCdWlsZGVyKCk7CiAgICAgICAgZm9yIChpbnQgaSA9IDA7IGkgPCBzLkxlbmd0aDsgaSsrKQogICAgICAgIHsKICAgICAgICAgIHNiLkFwcGVuZChzWyhzW2ldPT0nJCcpPysraTogaV0pOwogICAgICAgIH0KICAgICAgICBDb25zb2xlLldyaXRlKHNiKTsKCX0KfQo=