NSString * str= @"12345123451234512345"
"6789123451234512345"
"adsjfaskfjasdjfadkjfasdlj"
"asdfaldflakdjfad";
NSString * str= @"12345123451234512345"
"6789123451234512345"
"adsjfaskfjasdjfadkjfasdlj"
"asdfaldflakdjfad";