var str1 = readline(); var str2 = readline(); var arr = []; for (var i = 0; i < str1.length; i++) { arr[i] = []; for (var j = 0; j < str2.length; j++) { arr[[i]][j] = 0; } } var max = 0; for(var i=0;i<str1.length;i++){ for (var j = 0; j < str2.length; j++) { if (str1[i] == str2[j]) { if(i==0 || j==0){ arr[i][j] = 1; }else{ arr[i][j] = arr[i-1][j-1] + 1; } } if(arr[i][j]>max){ max = arr[i][j]; } } } print(max);