Why are guyana suriname and french guiana all separate countries

The Guianas is a South American region. It includes the independent nations of Guyana, French Guiana, and Suriname (termed before as Surinen).
Suriname was received by the Dutch, from England, in exchange for "Nieuw Amsterdam" (at present,called New York).

French Guiana became a French distinct part overseas in 1946 , while Suriname  went through constitutional reform in 1948–1951 and was given  self-government by the Netherlands in the year 1954 and independence in the year 1975.
British Guiana on the other hand was then granted its own constitution in 1953. In 1966 the later also achieved independence as Guyana .

May consider a group  g=({0,1},+)g=({0,1},+)where  ++  will work as the xor operator like we work in boolean algebra. note here, that ‘00’ and ‘11’ are not the usual 0 and 1 that we work with everyday. the elements are  called  ‘00’ and ‘11’ and  may not mean  zero (nothing) and one (single). ‘00’ is the identity for the given binary operator +, meaning that any element operated with ‘00’ gets us that element itself.  for a set  ss  in  g′g′  having more elements than just  {0,1}{0,1}  the values for  a+b∈sa+b∈s, such that  a∈s,b∈sa∈s,b∈s, have to be first defined, only then can you determine the value of  1+11+1. the answer could possibly have been  22  if oanswer is25,000

Where are the statements so i can ?