I have a string that I'm trying to decode but I don't know how it was coded maybe someone could help me (They are pairs of double xy)
RFATNrBhlgBEUBM+sFA0AERQE0awOzUARFATTrAigABEUBNWsAWYAERQE16vx84ARFATZq90JABEUBNurohUAERQE3YvA0AARFATfi+wkABEUBOGMBXagERQE44wWU9ARFATljCROiBEUBOeMLjYUERQE6Yw42egRFATrjEIh5BEUBO2MSEDiERQE74xOx/oRFATxjFW6lxEUBPOMXRqgkRQE9Yxib4cRFAT3jGZ9zxEUBPmMaq0ikRQE+4xu7yyRFAT9jHMvHREUBP+Md1UskRQFAYx7SQORFAUDjH7wG1EUBQWMgRlD0RSkYawk+OBRFKRjrBPGH1EUpGWL7P67ERSkZ4xhVzoRFKRpjKDUJREUpGuM1rCsERSkbY0KyqgRFKRvjUBC+BEUpHGNbze8kRSkc42hnViRFKR1jc6X/BEUpHeN/uOGURSkeY4pVJtRFKR7jlTnhJEUpH2OgPmCERSkf46oB/dRFKSBjs9T4hEUpIOO9n3xURSkhY8dGekRFKSHj0FcYZEUpImPY3pG0RSki4+EvijRFKSNj6UPBlEUpI+PxGaJ0RSkkY/i0dtRFKSTkABv7ZEUpJWQGtsqkRSkl5A0ADJRFKSZkEy+SJEUpJuQZX4e0RSknZB9MSaRFKSfkJChiFEUpKGQpaNw0RSko5C4vSMRFKSlkMmmAdEUpKeQ24ub0RSkqZDpdDsRFKSrkPg11JEUpK2RBR0ekRSkr5EPuquRFKSxkRvG4VEUpLORJHRh0RSktZErTSjRFKS3kTIXDdEUpLmROG3IURSku5E96JhRFKS9kUESoREUpL+RQmmvkRSkwZFC3xmRFKTDkUJpr5EUpMWRQRKhERSkx5E96JhRFKTJkThtyFEUpMuRMhcN0RSkzZErTSjRFKTPkSR0YdEUpNGRG8bhURSk05EPuquRFKTVkQUdHpEUpNeQ+DXUkRSk2ZDpdDsRFKTbkNuLm9EUpN2QyaYB0RSk35C4vSMRFKThkKWjcNEUpOOQkKGIURSk5ZB9MSaRFKTnkGV+HtEUpOmQTL5IkRSk65A0ADJRFKTtkBrbKpEUpO+QAG/tkRSk8Y/i0dtRFKTzj8RmidEUpPWPpQ8GURSk94+EvijRFKT5j2N6RtEUpPuPQVxhkRSk/Y8dGekRFKT/jvZ98VEUpQGOz1PiURSlA46oB/