var readline = require('readline'); const rl = readline.createInterface({ input: process.stdin, output: process.stdout, terminal:false }); var arr = []; var arr1; var arr2; var res=0; var ***=[]; function getMinOfArray(numArray) { return Math.min.apply(null, numArray); } rl.on('line', function(line){ arr=line.split(''); for(var i=0;i<arr.length;i++){ arr1 = arr.slice(0, i); arr2 = arr.slice(i); arr1.forEach(function(item){if(item=='G'){res++}}) arr2.forEach(function(item){if(item=='R'){res++}}) ***.push(res);res=0; } console.log(getMinOfArray(***)); });