View Compilation Error

0_0_36705262_25005.cpp: In function 'int main()':
0_0_36705262_25005.cpp:124:5: error: expected primary-expression before 'else'
     else if((ch[i][j]>='A'&&ch[i][j]<='Z')||(ch[i][j]>='a'&&ch[i][j]<='z')) {
     ^