add top quatation mark in a string, in mql4

External question — Stack Overflow Stack Exchange Author: Yılmaz Kahya Original post: https://stackoverflow.com/questions/70760049 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. in mql4, string list[]= {"EUR","CHF","GBP","JPY","AUD","CAD","NZD","CHF"}; for(int i=0; i<ArraySize(list); i++) string primer=list[i]; { for(i=0; i<ArraySize(list); i++) { string second =list[i]; string currency = StringConcatenate(primer, second); } } currency output is CHFCHF. how can i fix it to change "CHFCHF" instead of CHFCHF ? i don't add top quotation mark in mql4. Thank you.

External answer — Stack Overflow Stack Exchange Author: Yılmaz Kahya Original post: https://stackoverflow.com/a/70762547 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. if it is string currency = StringConcatenate(primer, second); output is CHFCHF. if string currency = StringConcatenate("\"",primer, second,"\""); output is "CHFCHF" and that is main point to send order later. thank you everybody